Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Elfin-Woods Warbler

Published date30 June 2020
Citation85 FR 39077
Record Number2020-12070
SectionRules and Regulations
CourtFish And Wildlife Service
Federal Register, Volume 85 Issue 126 (Tuesday, June 30, 2020)
[Federal Register Volume 85, Number 126 (Tuesday, June 30, 2020)]
                [Rules and Regulations]
                [Pages 39077-39095]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2020-12070]
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                DEPARTMENT OF THE INTERIOR
                Fish and Wildlife Service
                50 CFR Part 17
                [Docket No. FWS-R4-ES-2020-0030; FF09E21000 FXES11110900000 201]
                RIN 1018-BE85
                Endangered and Threatened Wildlife and Plants; Designation of
                Critical Habitat for Elfin-Woods Warbler
                AGENCY: Fish and Wildlife Service, Interior.
                ACTION: Final rule.
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                SUMMARY: We, the U.S. Fish and Wildlife Service (Service), designate
                critical habitat for the elfin-woods warbler (Setophaga angelae) under
                the Endangered Species Act of 1973, as amended (Act). In total,
                approximately 27,488 acres (11,125 hectares) in the Maricao, San
                Germ[aacute]n, Sabana Grande, Yauco, R[iacute]o Grande,
                Can[oacute]vanas, Las Piedras, Naguabo, Ceiba, Cayey, San Lorenzo,
                Guayama, and Patillas municipalities in Puerto Rico fall within the
                boundaries of the critical habitat designation. The effect of this
                regulation is to extend the Act's protections to the elfin-woods
                warbler's critical habitat.
                DATES: This rule is effective on July 30, 2020.
                ADDRESSES: This final rule is available on the internet at http://www.regulations.gov under Docket No. FWS-R4-ES-2020-0030 and at http://www.fws.gov/caribbean. Comments and materials we received, as well as
                some supporting documentation we used in preparing this rule, are
                available for public inspection at http://www.regulations.gov under
                Docket No. FWS-R4-ES-2020-0030.
                 The coordinates or plot points or both from which the maps are
                generated are included in the administrative record for this critical
                habitat designation and are available at http://www.regulations.gov at
                Docket No. FWS-R4-ES-2020-0030 and at http://www.fws.gov/caribbean. Any
                additional tools or supporting information that we developed for this
                critical habitat designation will also be available at the Service
                website and in the preamble at http://www.regulations.gov.
                FOR FURTHER INFORMATION CONTACT: Marelisa Rivera, Deputy Field
                Supervisor, U.S. Fish and Wildlife Service, Caribbean Ecological
                Services Field Office, P.O. Box 491, Road 301 km 5.1, Boquer[oacute]n,
                PR 00622; telephone 787-851-7297. Persons who use a telecommunication
                device for the deaf (TDD) may call the Federal Relay Service at 800-
                877-8339.
                SUPPLEMENTARY INFORMATION:
                Executive Summary
                 Why we need to publish a rule. Under the Act, if we determine that
                any species is an endangered or threatened species, we must designate
                critical habitat to the maximum extent prudent and determinable. We
                published in the Federal Register a final rule to list the elfin-woods
                warbler as a threatened species on June 22, 2016 (81 FR 40534). On that
                same day, we also published a proposed rule to designate critical
                habitat for the elfin-woods warbler (81 FR 40632). Designations of
                critical habitat can only be completed by issuing a rule.
                 What this rule does. This rule will finalize the designation of
                critical habitat for the elfin-woods warbler under the Act.
                Accordingly, this rule revises part 17 of title 50 of the Code of
                Federal Regulations at 50 CFR 17.95.
                 Basis for this rule. Under section 4(a)(3) of the Act, if we
                determine that any species is an endangered or threatened species we
                must, to the maximum extent prudent and determinable, designate
                critical habitat. Section 4(b)(2) of the Act states that the Secretary
                shall designate critical habitat on the basis of the best available
                scientific data after taking into consideration the economic impact,
                national security impact, and any other relevant impact of specifying
                any particular area as critical habitat. Section 3(5)(A) of the Act
                defines critical habitat as (i) the specific areas within the
                geographical area occupied by the species, at the time it is listed, on
                which are found those physical or biological features (I) essential to
                the conservation of the species and (II) which may require special
                management considerations or protections; and (ii) specific areas
                outside the geographical area occupied by the species at the time it is
                listed, upon a determination by the Secretary that such areas are
                essential
                [[Page 39078]]
                for the conservation of the species and that the area contains one or
                more of those physical or biological features essential to the
                conservation of the species, as interpreted by regulation at 50 CFR
                424.12. The Secretary may exclude an area from critical habitat if he
                determines that the benefits of such exclusion outweigh the benefits of
                specifying such area as part of the critical habitat, unless he
                determines, based on the best scientific data available, that the
                failure to designate such area as critical habitat will result in the
                extinction of the species.
                 The critical habitat we are designating in this rule, in three
                units comprising 27,488 acres (ac) (11,125 hectares (ha)), constitutes
                our current best assessment of the areas that meet the definition of
                critical habitat for the elfin-woods warbler.
                 Economic analysis. In accordance with section 4(b)(2) of the Act,
                we prepared an economic analysis of the impacts of designating critical
                habitat. We published this announcement and solicited public comments
                on the draft economic analysis (81 FR 40632; June 22, 2016).
                 Peer review and public comment. In accordance with our joint policy
                on peer review published in the Federal Register on July 1, 1994 (59 FR
                34270), and our August 22, 2016, memorandum updating and clarifying the
                role of peer review of actions under the Act, we sought the expert
                opinions of six independent specialists with scientific expertise that
                included familiarity with the species, the geographic region in which
                the species occurs, and conservation biology principles. The purpose of
                peer review is to ensure that our designation is based on
                scientifically sound data and analyses. We received responses from two
                peer reviewers on our technical assumptions, analysis, and whether or
                not we used the best scientific data available. These peer reviewers
                generally concurred with our methods and conclusions and provided
                additional information, clarifications, and suggestions to improve this
                final rule. Information we received from peer review is incorporated in
                this final designation of critical habitat. We also considered all
                comments and information received from the public during the comment
                period for the proposed designation of critical habitat.
                Previous Federal Actions
                 All previous Federal actions are described in the proposed and
                final listing rules for the elfin-woods warbler as a threatened species
                under the Act published on September 30, 2015 (80 FR 58674) and June
                22, 2016 (81 FR 40534). Concurrently with the final listing rule, we
                adopted a rule under section 4(d) of the Act to provide for the
                conservation of the elfin-woods warbler. We published our proposed rule
                to designate critical habitat for the elfin-woods warbler on June 22,
                2016 (81 FR 40632).
                 On August 27, 2019, we published a final rule in the Federal
                Register (84 FR 45020) to amend our regulations concerning the
                procedures and criteria we use to designate and revise critical
                habitat. That rule became effective on September 26, 2019, but, as
                stated in that rule, the amendments it sets forth apply to ``rules for
                which a proposed rule was published after September 26, 2019.'' We
                published our proposed critical habitat designation for the elfin-woods
                warbler on June 22, 2016 (81 FR 40534); therefore, the amendments set
                forth in the August 27, 2019, final rule at 84 FR 45020 do not apply to
                this final designation of critical habitat for the elfin-woods warbler.
                Nonetheless, we note that this designation is also consistent with the
                standards set forth in the August 27, 2019 amendments to the
                regulations.
                Summary of Comments and Recommendations
                 In the June 22, 2016, proposed critical habitat rule (81 FR 40632),
                we requested that all interested parties submit written comments on the
                proposed designation of critical habitat for the elfin-woods warbler by
                August 22, 2016. We also contacted appropriate Federal, State, and
                local agencies, scientific organizations, and other interested parties
                and invited them to comment on the proposed rule and draft economic
                analysis (DEA). A newspaper notice inviting general public comment was
                published in Primera Hora on June 24, 2016. We did not receive any
                requests for a public hearing, and we did not receive any comments on
                the DEA.
                 During the comment period, we received two comment letters from
                peer reviewers directly addressing the proposed critical habitat
                designation and one public comment. All substantive information
                provided during the comment period has either been incorporated
                directly into this final determination or addressed below, as
                appropriate.
                Peer Reviewer Comments
                 (1) Comment: A peer reviewer recommended adding the westernmost
                patches of forest within the boundaries of the Maricao Commonwealth
                Forest (MCF) as critical habitat for the elfin-woods warbler. According
                to the reviewer, these forest patches qualify as essential habitat for
                the conservation of the species for breeding, reproduction, or rearing
                of offspring. The reviewer also reported two observations of elfin-
                woods warbler in those patches.
                 Our Response: We reviewed the westernmost boundaries of Unit 1
                (Maricao) of the proposed critical habitat and the new data documenting
                the species' occurrence in the area. Based on the reanalysis of the
                area and the data provided by the peer reviewer, we revised Unit 1 to
                add approximately 363 ac (146 ha). This additional area comprises 2.8
                percent of Unit 1. The Puerto Rico Department of Natural and
                Environmental Resources (PDNER) manages 97.8 percent of the additional
                area, in the MCF, with the remaining 2.2 percent (8 ac) of the
                additional area on private land.
                 (2) Comment: A peer reviewer recommended we expand the Maricao Unit
                because they believed habitat with physical and biological features on
                private lands outside the western boundary of the MCF was left out of
                the critical habitat designation. The reviewer recommended designating
                active and abandoned shade-grown coffee plantations, agricultural lands
                with native forest cover, and closed canopies that exist in the
                mountainsides parallel to road PR#105 up to km 12.4, as critical
                habitat. The reviewer stated that this area encompasses suitable
                habitat consistently used and occupied by the elfin-woods warbler.
                 Our Response: We reanalyzed the lands adjacent to the western
                boundary of the MCF. As described in our response to comment 1, we
                identified an additional 8 ac (3.2 ha) of private land adjacent to the
                MCF that is occupied and contains the physical and biological features
                required by the elfin-woods warbler that we are including as critical
                habitat. We determined the remainder of these private areas suggested
                by the peer reviewer are disturbed and do not fit our established
                criteria for critical habitat at this time (see Criteria Used To
                Identify Critical Habitat). Because these areas are occupied, the
                species is protected in these areas. For example, where a landowner
                requests Federal agency funding or authorization for an action that may
                affect a listed species or critical habitat, the Federal agency would
                be required to consult with the Service under section 7(a)(2) of the
                Act. Additionally, the prohibitions of section 9 of the Act apply to
                the elfin-woods warblers that occur within these areas.
                 (3) Comment: A peer reviewer recommended we include Guilarte
                Commonwealth Forest as another area outside the geographic range of the
                [[Page 39079]]
                elfin-woods warbler at the time of listing to be included as critical
                habitat, based on the potential of this forest to provide connectivity
                between occupied sites for genetic exchange and because it contains the
                necessary habitat to support the species.
                 Our Response: Based on the best available information at this time,
                we do not consider the Guilarte Commonwealth Forest (GCF) essential to
                the conservation of the species. The elfin-woods warbler has never been
                observed in the GCF, indicating the GCF may not be essential habitat
                for the species. In addition, occupancy of resilient populations of the
                elfin-woods warbler in the three areas that constitute its known
                historical range, which we are designating as critical habitat, would
                likely be sufficient to ensure conservation of the species. A critical
                habitat designation does not signal that habitat outside the designated
                area is unimportant or may not be beneficial for the recovery of the
                species. The Service can develop recovery actions during recovery
                planning for this site. We will continue working with our State
                partners to address the conservation needs of the elfin-woods warbler.
                Comments From States
                 Section 4(b)(5)(A)(ii) of the Act requires the Service to give
                actual notice of any designation of lands that are considered to be
                critical habitat to the appropriate agency of each State in which the
                species is believed to occur, and invite each such agency to comment on
                the proposed regulation. Section 4(i) of the Act states, ``the
                Secretary shall submit to the State agency a written justification for
                his failure to adopt regulations consistent with the agency's comments
                or petition.'' For this rule we did not receive any written comments
                from the Commonwealth of Puerto Rico.
                Public Comments
                 We received one public comment on the proposed rule. While the
                commenter indicated support for the habitat protection of the elfin-
                woods warbler, the commenter did not provide substantive comments
                requiring the Service's response.
                Summary of Changes From Proposed Rule
                 This final rule incorporates changes to our proposed rule based on
                the comments and information we received, as discussed above in the
                Summary of Comments and Recommendations. All changes made were included
                accordingly into the document, tables, and maps. As a result, the final
                designation of critical habitat reflects the following changes from the
                June 22, 2016, proposed rule (81 FR 40632):
                 1. We revised Unit 1 (Maricao) to include additional area as
                critical habitat. This unit now consists of approximately 12,978 ac
                (5,252 ha), which is an increase of approximately 2.8 percent of the
                proposed area for Unit 1.
                 2. We corrected an error in the acreage of Unit 3 (Carite). The
                error resulted from rounding of numbers (rounding up from 0.55), and
                the change was an increase of approximately 1.1 ac (0.45 ha).
                 3. We refined our description of the physical and biological
                features to be more explicit about the features we are identifying,
                specifying these features include elevations above 300 meters in active
                shade-grown coffee plantations or forested agricultural lands dominated
                primarily by native vegetation, or abandoned coffee plantations or
                agricultural lands with native forest cover and a closed canopy. In the
                proposed rule, we did not specify the elevations in these landscapes.
                No adjustments to the unit boundaries were needed as a result of this
                change.
                 4. We updated the coordinates or plot points from which the maps
                were generated. The information is available at http://www.regulations.gov under Docket No. FWS-R4-ES-2020-0030, and from the
                Caribbean Ecological Services Field Office website at http://www.fws.gov/caribbean.
                Critical Habitat
                Background
                 Critical habitat is defined in section 3 of the Act as:
                 (1) The specific areas within the geographical area occupied by the
                species, at the time it is listed in accordance with the Act, on which
                are found those physical or biological features
                 (a) Essential to the conservation of the species, and
                 (b) Which may require special management considerations or
                protection; and
                 (2) Specific areas outside the geographical area occupied by the
                species at the time it is listed, upon a determination that such areas
                are essential for the conservation of the species.
                 Our regulations at 50 CFR 424.02 define the geographical area
                occupied by the species as: An area that may generally be delineated
                around species' occurrences, as determined by the Secretary (i.e.,
                range). Such areas may include those areas used throughout all or part
                of the species' life cycle, even if not used on a regular basis (e.g.,
                migratory corridors, seasonal habitats, and habitats used periodically,
                but not solely by vagrant individuals).
                 Conservation, as defined under section 3 of the Act, means to use
                and the use of all methods and procedures that are necessary to bring
                an endangered or threatened species to the point at which the measures
                provided pursuant to the Act are no longer necessary. Such methods and
                procedures include, but are not limited to, all activities associated
                with scientific resources management such as research, census, law
                enforcement, habitat acquisition and maintenance, propagation, live
                trapping, and transplantation, and, in the extraordinary case where
                population pressures within a given ecosystem cannot be otherwise
                relieved, may include regulated taking.
                 Critical habitat receives protection under section 7 of the Act
                through the requirement that Federal agencies ensure, in consultation
                with the Service, that any action they authorize, fund, or carry out is
                not likely to result in the destruction or adverse modification of
                critical habitat. The designation of critical habitat does not affect
                land ownership or establish a refuge, wilderness, reserve, preserve, or
                other conservation area. Such designation does not allow the government
                or public to access private lands. Such designation does not require
                implementation of restoration, recovery, or enhancement measures by
                non-Federal landowners. Where a landowner requests Federal agency
                funding or authorization for an action that may affect a listed species
                or critical habitat, the Federal agency would be required to consult
                with the Service under section 7(a)(2) of the Act. However, even if the
                Service were to conclude that the proposed activity would result in
                destruction or adverse modification of the critical habitat, the
                Federal action agency and the landowner are not required to abandon the
                proposed activity, or to restore or recover the species; instead, they
                must implement ``reasonable and prudent alternatives'' to avoid
                destruction or adverse modification of critical habitat.
                 Under the first prong of the Act's definition of critical habitat,
                areas within the geographical area occupied by the species at the time
                it was listed are included in a critical habitat designation if they
                contain physical or biological features (1) which are essential to the
                conservation of the species and (2) which may require special
                management considerations or protection. For these areas, critical
                [[Page 39080]]
                habitat designations identify, to the extent known using the best
                scientific and commercial data available, those physical or biological
                features that are essential to the conservation of the species (such as
                space, food, cover, and protected habitat). In identifying those
                physical or biological features within an area, we focus on the
                specific features that support the life-history needs of the species,
                including but not limited to, water characteristics, soil type,
                geological features, prey, vegetation, symbiotic species, or other
                features. A feature may be a single habitat characteristic, or a more
                complex combination of habitat characteristics. Features may include
                habitat characteristics that support ephemeral or dynamic habitat
                conditions. Features may also be expressed in terms relating to
                principles of conservation biology, such as patch size, distribution
                distances, and connectivity.
                 Under the second prong of the Act's definition of critical habitat,
                we may designate critical habitat in areas outside the geographical
                area occupied by the species at the time it is listed, upon a
                determination that such areas are essential for the conservation of the
                species.
                 For the elfin-woods warbler, we determined whether unoccupied areas
                are essential for the conservation of the species by considering the
                life-history, status, and conservation needs of the species. Our
                decision was further informed by observations of species-habitat
                relationships, habitat suitability models derived from these
                observations, and the locations of historical records to identify which
                features and specific areas are essential to the conservation of the
                species and, as a result, the development of the critical habitat
                designation.
                 Section 4 of the Act requires that we designate critical habitat on
                the basis of the best scientific data available. Further, our Policy on
                Information Standards Under the Endangered Species Act (published in
                the Federal Register on July 1, 1994 (59 FR 34271)), the Information
                Quality Act (section 515 of the Treasury and General Government
                Appropriations Act for Fiscal Year 2001 (Pub. L. 106-554; H.R. 5658)),
                and our associated Information Quality Guidelines provide criteria,
                establish procedures, and provide guidance to ensure that our decisions
                are based on the best scientific data available. They require our
                biologists, to the extent consistent with the Act and with the use of
                the best scientific data available, to use primary and original sources
                of information as the basis for recommendations to designate critical
                habitat.
                 When we are determining which areas should be designated as
                critical habitat, our primary source of information is generally the
                information developed during the listing process for the species.
                Additional information sources may include any generalized conservation
                strategy, criteria, or outline that may have been developed for the
                species, the recovery plan for the species, articles in peer-reviewed
                journals, conservation plans developed by States and counties,
                scientific status surveys and studies, biological assessments, other
                unpublished materials, or experts' opinions or personal knowledge.
                 Habitat is dynamic, and species may move from one area to another
                over time. We recognize that critical habitat designated at a
                particular point in time may not include all of the habitat areas that
                we may later determine are necessary for the recovery of the species.
                For these reasons, a critical habitat designation does not signal that
                habitat outside the designated area is unimportant or may not be needed
                for recovery of the species. Areas that are important to the
                conservation of the species, both inside and outside the critical
                habitat designation, will continue to be subject to: (1) Conservation
                actions implemented under section 7(a)(1) of the Act, (2) regulatory
                protections afforded by the requirement in section 7(a)(2) of the Act
                for Federal agencies to ensure their actions are not likely to
                jeopardize the continued existence of any endangered or threatened
                species, and (3) section 9 of the Act's prohibitions on taking any
                individual of the species, including taking caused by actions that
                affect habitat. Federally funded or permitted projects affecting listed
                species outside their designated critical habitat areas may still
                result in jeopardy findings in some cases. These protections and
                conservation tools will continue to contribute to recovery of this
                species. Similarly, critical habitat designations made on the basis of
                the best available information at the time of designation will not
                control the direction and substance of future recovery plans, habitat
                conservation plans (HCPs), or other species conservation planning
                efforts if new information available at the time of these planning
                efforts calls for a different outcome.
                Physical or Biological Features Essential to the Conservation of the
                Species
                 In accordance with section 3(5)(A)(i) of the Act and regulations at
                50 CFR 424.12(b), in determining which areas within the geographical
                area occupied by the species at the time of listing to designate as
                critical habitat, we consider the physical or biological features
                (PBFs) that are essential to the conservation of the species and which
                may require special management considerations or protection. For
                example, physical features might include gravel of a particular size
                required for spawning, alkali soil for seed germination, protective
                cover for migration, or susceptibility to flooding or fire that
                maintains necessary early-successional habitat characteristics.
                Biological features might include prey species, forage grasses,
                specific kinds or ages of trees for roosting or nesting, symbiotic
                fungi, or a particular level of nonnative species consistent with
                conservation needs of the listed species. The features may also be
                combinations of habitat characteristics and may encompass the
                relationship between characteristics or the necessary amount of a
                characteristic needed to support the life history of the species. In
                considering whether features are essential to the conservation of the
                species, the Service may consider an appropriate quality, quantity, and
                spatial and temporal arrangement of habitat characteristics in the
                context of the life-history needs, condition, and status of the
                species. These characteristics include, but are not limited to, space
                for individual and population growth and for normal behavior; food,
                water, air, light, minerals, or other nutritional or physiological
                requirements; cover or shelter; sites for breeding, reproduction, or
                rearing (or development) of offspring; and habitats that are protected
                from disturbance.
                 The elfin-woods warbler is an endemic Puerto Rican bird with a very
                limited distribution. It is typically observed in forested habitats
                with closed canopy and well-developed understory in higher elevations.
                Based on the best available information, there are only two known
                elfin-woods warbler populations, one each in eastern and western Puerto
                Rico.
                 The eastern population occurs at El Yunque National Forest (EYNF)
                located within the Sierra de Luquillo mountains. The species' primary
                habitat in EYNF consists of the dwarf forest (Kepler and Parkes 1972,
                pp. 3-5) and the Palo Colorado forest (Wiley and Bauer 1985, pp. 12-
                18). The dwarf forest falls within the lower montane rain forest life
                zone (Ewel and Whitmore 1973, p. 49). It is found on exposed peaks with
                short, stunted vegetation above 900 meters (m) (2,952 feet (ft)) in
                elevation (Weaver 2012, p. 58). The
                [[Page 39081]]
                dwarf forest is characterized by a single story of trees that range
                from 1 to 6 m (3 to 19 ft) in height, depending on exposure (Weaver
                2012, p. 58). However, trees located on rocky summits are limited to 2
                to 3 m (6 to 10 ft) in height. Although no tree species is confined to
                this type of forest, only a few species, such as Podocarpus coriaceus
                (no common name, referred to as ``Podocarpus''), Ocotea spathulata
                (nemoc[aacute]), and Ilex sintenisii (no common name), are adapted to
                survive on the exposed summits of this forest (Weaver 2012, p. 58). The
                dwarf forest is also characterized by the abundance of mosses,
                epiphytes, and liverworts that cover the majority of the forest surface
                (Lugo 2005, p. 514).
                 The Palo Colorado forest occurs on gentle slopes within the lower
                montane wet and lower montane rain forest life zones, approximately
                between 600 and 900 m (1,968 and 2,952 ft) in elevation (Weaver 2012,
                p. 1; U.S. Forest Service (USFS) no date). This forest type mainly
                consists of fast-growing trees with heights not exceeding more than 24
                m (78 ft) (Lugo 2005, p. 506). This forest type is essentially an
                upland swamp of short-statured trees with shallow root systems (USFS,
                no date). Some of the most common tree species are Cyrilla racemiflora
                (Palo Colorado), Prestoea montana (Sierra palm), Ocotea spathulata, and
                Croton poecilanthus (sabin[oacute]n) (Weaver 2012, p. 55). The
                understory of the Palo Colorado forest is dominated by grasses,
                bromeliads, ferns, and sedges (Lugo 2005, p. 508).
                 The western population of the elfin-woods warbler is located within
                the MCF and adjacent agricultural lands. The MCF is located within the
                Cordillera Central (central mountain range) of Puerto Rico. The primary
                habitat of the western population consists of Podocarpus forest,
                exposed ridge woodland, and timber plantation forests (Gonz[aacute]lez
                2008, pp. 15-16). The Podocarpus forest is located on the slopes and
                highest peaks (600 to 900 m (1,968 to 2,952 ft)) within the lower
                montane wet forest life zone (DNR 1976, p. 185; Ewel and Whitmore 1973,
                p. 41). At the MCF, this type of forest grows on deep serpentine soils
                and is dominated by Podocarpus coriaceus trees; a continuous closed
                canopy of approximately 20 m (66 ft) of height; and a well-developed
                understory composed of tree ferns (Cyathea spp.), Sierra palm, and
                vines (Tossas and Delannoy 2001, pp. 47-53; Anad[oacute]n-Irizarry
                2006, p. 53; Gonz[aacute]lez 2008, pp. 15-16). The exposed ridge
                woodland forest is found in valleys, slopes, and shallow soils with a
                more or less continuous canopy (Gonz[aacute]lez 2008, pp. 15-16). These
                forest associations are found at elevations ranging from 550 to 750 m
                (1,804 to 2,460 ft) within the subtropical wet forest life zone (DNR
                1976, p. 185; Ricart-Pujals and Padr[oacute]n-V[eacute]lez 2010, p. 9).
                The timber plantation forest is found in elevations ranging from 630 to
                850 m (2,066 to 2,788 ft) within the subtropical wet forest and the
                subtropical moist forest life zones (DNR 1976, p. 185). Habitat in this
                forest is predominantly Calophyllum calaba (Mar[iacute]a trees),
                Eucalyptus robusta (eucalyptus), and Pinus caribaea (Honduran pine)
                planted in areas that were deforested for agriculture (Delannoy 2007,
                p. 9; Gonz[aacute]lez 2008, p. 5).
                 In the privately owned lands adjacent to the MCF, the species has
                been reported mainly within secondary forests (both young and mature
                secondary forests) and shade-grown coffee plantations (Gonz[aacute]lez
                2008, pp. 15-16). The young secondary forests are less than 25 years
                old with a mostly open canopy approximately 12 to 15 m (40 to 50 ft) in
                height (Gonz[aacute]lez 2008, p. 6). These forests are found within the
                subtropical moist and subtropical wet forest life zones at elevations
                ranging from 300 to 750 m (984 to 2,460 ft) (Gonz[aacute]lez 2008, p.
                59; Puerto Rico Planning Board 2015, no page number), and cover
                approximately 98 percent of the MCF (DNR 1976, p. 185). The understory
                is well developed and dominated by grasses, vines, and other early
                successional species (Gonz[aacute]lez 2008, p. 6). Mature secondary
                forests are over 25 years old, developing in humid and very humid,
                moderate to steep slopes. These forests are characterized by a closed
                canopy of approximately 20 to 30 m (66 to 100 ft) in height and sparse
                to abundant understory (Gonz[aacute]lez 2008, p. 6). The shade-grown
                coffee plantations are covered with tall mature trees, dominated mostly
                by Inga vera (guaba), Inga laurina (guam[aacute]), Andira inermis
                (moca), and Guarea guidonia (guaraguao) trees, reaching 15 to 20 m (50
                to 66 ft) in height, with an open understory without grasses
                (Gonz[aacute]lez 2008, p. 6). Located adjacent to the MCF at elevations
                between 300 and 600 m (984 and 1,968 ft), these shade-grown coffee
                plantations extend the vegetation cover and provide habitat for the
                species (Gonz[aacute]lez 2008, p. 59).
                 According to the habitat suitability model developed for the
                species, all the habitats described above occur within the intermediate
                to very high adequacy category (Col[oacute]n-Merced 2013, p. 57). This
                model is based on a combination of elevation and vegetation cover in
                areas where the species is known to occur. In addition, the species
                appears to be associated with high elevations and is seldom observed in
                elevations lower than 300 m (984 ft). The habitat types identified
                above are the only habitats that the species is known to occupy and use
                for normal behavior that support its life-history processes. Thus,
                protection and maintenance of these forested habitat features are
                essential for rearing, growth, foraging, migration, and other normal
                behaviors of the species.
                 Limited information is available concerning the elfin-woods
                warbler's breeding, reproduction, and offspring development. However,
                based on the best available information, shaded and forested corridors
                are features that are essential to breeding, reproduction, and rearing.
                The elfin-woods warbler's breeding occurs between March and June
                (Raffaele et al. 1998, p. 406). Clutch size is usually two to three
                eggs, but there have been observations of nests that contain broods of
                up to four nestlings (Raffaele et al. 1998, p. 406; Rodr[iacute]guez-
                Mojica 2004, p. 22). The species' nest is described as a compact cup,
                usually close to the trunk and well hidden among epiphytes of small
                trees (Raffaele et al. 1998, p. 406). The first elfin-woods warbler
                nest was found in 1985 at EYNF (Arroyo-V[aacute]zquez 1992, p. 362),
                and later, two nests were found in the MCF area (Arryo-V[aacute]zquez
                1992, p. 362). Both nests in the MCF were in Podocarpus forest, placed
                in trees among dry leaf litter trapped in vegetation or vines at
                heights between 1.3 and 7.6 m (4.3 and 25.0 ft) (Arroyo-V[aacute]zquez
                1992, pp. 362-364). In 2004, the first nesting event in a cavity of a
                rotten Cyrilla racemiflora stump in the MCF area was reported
                (Rodr[iacute]guez-Mojica 2004, p. 22). The nest was placed about 7 m
                (23 ft) above ground and 6 centimeters (cm) (2 inches (in)) deep from
                the lower border of the irregular rim of the stump. No other warbler
                species in Puerto Rico have been reported using such a nesting site
                (Rodr[iacute]guez-Mojica 2004, p. 23).
                 Based on the available information describing the habitat used by
                the elfin-woods warbler, we identified the dwarf, Palo Colorado,
                Podocarpus, exposed ridge woodland, and timber plantation forests and
                forest associations (shaded and forested corridors); secondary forests;
                and shade-grown coffee plantations. These habitats contain physical or
                biological features that are essential to the conservation of the
                elfin-woods warbler because they provide space for population growth
                and normal behavior; cover and shelter; and sites for breeding,
                rearing, and development of offspring.
                [[Page 39082]]
                Summary of Essential Physical or Biological Features
                 We derived the specific physical or biological features (PBFs)
                essential to the conservation of the elfin-woods warbler from studies
                of this species' habitat, ecology, and life history as described above.
                Additional information can be found in the final listing rule published
                in the Federal Register on June 22, 2016 (81 FR 45035), and in our
                proposed critical habitat designation, which also published in the
                Federal Register on June 22, 2016 (81 FR 40632). We have determined
                that the following PBFs are essential to the conservation of elfin-
                woods warbler:
                 1. Wet and rain montane forest types:
                 a. Podocarpus forest at elevations between 600 and 900 m (1,968 and
                2,952 ft) with continuous closed canopy of 20 m (66 ft) in height,
                dominated by Podocarpus coriaceus trees with well-developed understory.
                 b. Dwarf forest at elevations above 900 m (2,952 ft) with a single
                story of trees between 1 and 6 m (3 and 19 ft) in height, with an
                understory of mosses, epiphytes, and liverworts.
                 c. Palo Colorado forest at elevations between 600 and 900 m (1,968
                and 2,952 ft) with a closed canopy of approximately 20 m (66 ft) and an
                understory dominated by grasses, ferns, bromeliads, and sedges.
                 2. Forested habitat areas that contain:
                 a. Active shade-grown coffee plantations or forested agricultural
                lands that are above 300 m in elevation and are dominated primarily by
                native vegetation; or
                 b. Abandoned coffee plantations or agricultural lands (i.e.,
                agricultural practices were discontinued) with native forest cover and
                a closed canopy found above 300 m in elevation.
                 3. Forested habitat (at elevations between 300 and 850 m (984 and
                2,788 ft)) not contained within the habitats described in PBF 1 or PBF
                2:
                 a. Exposed ridge woodland forest found in valleys, slopes, and
                shallow soils with a more or less continuous canopy at elevations
                ranging from 550 to 750 m (1,804 to 2,460 ft);
                 b. Timber plantation forest at elevations ranging from 630 to 850 m
                (2,066 to 2,788 ft); or
                 c. Secondary forests dominated by native tree species with a closed
                canopy of approximately 20-30 m (66-100 ft) in height at elevations
                ranging from 300 to 750 m (984 to 2,460 ft).
                Special Management Considerations or Protection
                 When designating critical habitat, we assess whether the specific
                areas within the geographical area occupied by the species at the time
                of listing contain features that are essential to the conservation of
                the species and may require special management considerations or
                protection.
                 The Maricao unit contains privately owned agricultural lands in
                which various activities may affect one or more of the PBFs. The
                features of this unit essential to the conservation of the elfin-woods
                warbler may require special management considerations or protection to
                reduce the following threats: Loss, fragmentation, and degradation of
                habitat due to unsustainable agricultural practices; hurricanes; and
                human-induced fires. The features of the El Yunque unit may require
                special management considerations or protection to reduce threats or
                potential threats from hurricanes and human-induced fires, which may be
                exacerbated by the effects of climate change.
                 Management activities that could ameliorate these threats or
                potential threats include but are not limited to the following: The
                2014 candidate conservation agreement (CCA) signed by the Service, U.S.
                Forest Service, and Puerto Rico Department of Natural and Environmental
                Resources (PRDNER) to implement conservation practices for the benefit
                of the elfin-woods warbler and its habitat in EYNF and MCF (USFWS
                2014); implementation of conservation agreements with private
                landowners to restore habitat and minimize habitat disturbance and
                fragmentation; and development and implementation of management plans
                for other protected lands where the species is found.
                Criteria Used To Identify Critical Habitat
                 As required by section 4(b)(2) of the Act, we use the best
                scientific data available to designate critical habitat. In accordance
                with the Act and our implementing regulations at 50 CFR 424.12(b), we
                review available information pertaining to the habitat requirements of
                the species and identify specific areas within the geographical area
                occupied by the species at the time of listing and any specific areas
                outside the geographical area occupied by the species to be considered
                for designation as critical habitat.
                 Because of the vulnerability associated with small populations,
                limited distributions, or both (as described in the final listing
                rule), conservation of the elfin-woods warbler requires protection of
                both existing occupied habitat and potential habitat (i.e., suitable
                for occupancy but currently unoccupied), and the establishment of new
                populations to reduce or eliminate such vulnerability. In this case, we
                considered potential habitat to be historically occupied areas that
                currently possess the PBFs suitable for elfin-woods warbler
                recolonization and subsequent persistence. Therefore, for the elfin-
                woods warbler, in addition to areas occupied by the species at the time
                of listing, we are designating habitat outside the geographical area
                occupied by the species at the time of listing (Unit 3, Carite), which
                was historically occupied but is presently unoccupied, because it is
                essential for the conservation of the species and that the area
                contains one or more of those physical or biological features essential
                to the conservation of the species.
                 Sources of data for this critical habitat designation include
                reports on assessments and surveys throughout the species' range, peer-
                reviewed scientific and academic literature, habitat suitability
                models, personal communications with the species experts (e.g.,
                Col[oacute]n-Merced 2013; Gonz[aacute]lez 2008; Anad[oacute]n-Irizarry
                2006; Delannoy 2007; Arroyo-V[aacute]zquez 1992; P[eacute]rez-Rivera
                2014, pers. comm.); and information from Service biologists. Other
                sources include databases maintained by Commonwealth and Federal
                agencies regarding Puerto Rico (such as elevation data, land cover
                data, aerial imagery, protected areas, and U.S. Geological Survey
                (USGS) topographic maps). Critical habitat units were then mapped using
                ArcMap version 10 (Environmental Systems Research Institute, Inc.), a
                geographic information system (GIS) program.
                 To further refine the critical habitat boundaries, we used an
                existing elfin-woods warbler habitat suitability model (Col[oacute]n-
                Merced 2013, p. 51). This model uses variables such as elevation and
                vegetation cover to predict suitable habitat for this species in Puerto
                Rico (Col[oacute]n-Merced 2013, p. 45). This model has been validated
                in several locations in Puerto Rico (Anad[oacute]n-Irizarry 2017, pp.
                7-10; Anad[oacute]n-Irizarry et al. 2017, entire).
                 In order to identify essential features within private lands
                adjacent to the MCF, we established a buffer zone of 500 m (0.31 mile
                (mi)) from the boundary line of the MCF to include forested areas in
                abandoned and active shade-grown coffee plantations where the elfin-
                woods warbler has been reported on the north, east, and west sides of
                the forest (Gonz[aacute]lez 2008, p. 59). We used 500 m (0.31 mi) as
                our buffer zone, because our best understanding of the available
                information (e.g., spatial data and on-
                [[Page 39083]]
                the-ground data) is that this area encompasses suitable habitat that
                supports the conservation of the elfin-woods warbler.
                Areas Occupied at the Time of Listing
                 The final critical habitat designation focuses on occupied forested
                areas within the species' historical range containing the PBFs that
                will allow for the maintenance and expansion of existing populations
                and for possible new populations. Two locations meet the definition of
                geographic areas occupied by the species at the time of listing: (1)
                EYNF, and (2) MCF and adjacent private lands to the north, east, and
                west.
                Areas Outside the Geographical Area Occupied at the Time of Listing
                 To consider for designation areas not occupied by the species at
                the time of the listing, we must demonstrate that these areas are
                essential for the conservation of the species and that the area
                contains one or more of those physical or biological features essential
                to the conservation of the species. To determine if these areas are
                essential for the conservation of the elfin-woods warbler, we
                considered the life history, status, habitat elements, and conservation
                needs of the species such as:
                 (1) The importance of the area to the overall status of the species
                to prevent extinction and contribute to the species' conservation;
                 (2) Whether the area contains the necessary habitat to support the
                species;
                 (3) Whether the area provides connectivity between occupied sites
                for genetic exchange; and
                 (4) Whether a population of the species could be reestablished in
                the area.
                 The Carite Commonwealth Forest (CCF) is within the historical range
                of the elfin-woods warbler, within the Sierra de Cayey mountains in
                southeast Puerto Rico (Silander et al. 1986, p. 178); the Sierra de
                Cayey mountains are connected to the Cordillera Central mountains,
                which extend from Aibonito in the east to Maricao in the west of Puerto
                Rico (Monroe 1980, p. 16). However, the species has not been reported
                in CCF since 2000 (Anad[oacute]n-Irizarry 2006, p. 34; P[eacute]rez-
                Rivera 2014, pers. comm.; Aide and Campos 2016, entire).
                 The CCF has been managed for conservation by the PRDNER since 1975
                (previously Department of Natural Resources (DNR); DNR 1976, p. 169).
                This forest covers about 6,660 ac (2,695 ha), and ranges between 820
                and 2,962 ft (250 and 903 m) in elevation (DNR 1976, p. 168). The mean
                annual precipitation is 225 cm (88.5 in), and the mean temperature is
                72.3 degrees Fahrenheit ([deg]F) (22.7 degrees Celsius ([deg]C)) (DNR
                1976, p. 169; Silander et al. 1986, p. 183).
                 The CCF contains the following forest types, which contain the PBFs
                for the elfin-woods warbler: Dwarf forest, Palo Colorado forest, timber
                plantation forest, and secondary forests. These are the same forest
                types used by the elfin-woods warbler in EYNF and MCF and are located
                within the same life zones in CCF as they are in EYNF and MCF (Ewel and
                Whitmore 1973, p. 74).
                 Although studies conducted by Anad[oacute]n-Irizarry (2006, 2014)
                between 2003-2004 and 2012-2013 failed to detect the species within the
                CCF, she suggested the possibility that the species may still be
                present in isolated pockets of forest that were not searched during
                those studies. The elfin-woods warbler may be difficult to detect owing
                to its persistent and relatively sedentary behavior and because it has
                an affinity for certain small and isolated pockets of forest
                (Anad[oacute]n-Irizarry 2006, p. 54; Delannoy 2007, pp. 22-23;
                P[eacute]rez-Rivera 2014, pers. comm.). However, surveys contracted by
                the Service and conducted between March and April 2016 did not detect
                the species within the CCF and adjacent private lands (Aide and Campos
                2016, entire). In any case, the CCF contains habitat that is likely
                suitable for the elfin-woods warbler due to its similarity in
                elevation, climatic conditions, and vegetation associations with EYNF
                and MCF (Col[oacute]n-Merced 2013, p. 57). This area contains habitat
                with ``intermediate to very high adequacy'' (favorable to optimal
                combination of elevation and vegetation cover in the known elfin-woods
                warbler habitat) according to the habitat suitability model for the
                species (Col[oacute]n-Merced 2013, p. 57).
                 The CCF provides the necessary habitat to support the elfin-woods
                warbler in the easternmost part of the Cordillera Central. The presence
                of suitable habitat characteristics and historic occurrence of the
                species within the CCF increases the opportunity for future
                reestablishment of a population of elfin-woods warblers in this forest.
                In addition, the connectivity between MCF and CCF through the
                Cordillera Central is expected to result in genetic exchange between
                the existing MCF populations and CCF populations that may be
                reestablished in the future. While there is connectivity between MCF
                and CCF, the EYNF is within the Sierra de Luquillo mountains with lower
                elevation and development between the mountain ranges that
                significantly reduces connectivity between CCF and EYNF. For the above-
                mentioned reasons, we conclude that suitable habitat within the CCF
                meets the four considerations described above, and is therefore
                essential for the conservation of the elfin-woods warbler.
                General Information on the Maps of the Critical Habitat Designation
                 When determining critical habitat boundaries within this final
                rule, we made every effort to avoid including developed areas such as
                lands covered by buildings, pavement, and other structures because such
                lands lack physical or biological features necessary for elfin-woods
                warbler. The scale of the maps we prepared under the parameters for
                publication within the Code of Federal Regulations may not reflect the
                exclusion of such developed lands. Any such lands inadvertently left
                inside critical habitat boundaries shown on the maps of this final rule
                have been excluded by text in the rule and are not designated as
                critical habitat. Therefore, a Federal action involving these lands
                will not trigger section 7 consultation with respect to critical
                habitat and the requirement of no adverse modification unless the
                specific action would affect the physical or biological features in the
                adjacent critical habitat.
                 We are designating as critical habitat in areas that we have
                determined were occupied at the time of listing in 2016 and contain
                physical or biological features to support life-history processes
                essential to the conservation of the species. We are also designating
                specific areas within one unit outside of the geographical area
                occupied by the species at the time of listing, which were historically
                occupied but are presently unoccupied, because we have determined that
                such areas are essential for the conservation of elfin-woods warbler
                and that the area contains one or more of those physical or biological
                features essential to the conservation of the warbler.
                 All units were designated based on one or more of the elements of
                physical or biological features being present to support elfin-woods
                warbler's life processes. Some units contained all of the identified
                elements of physical or biological features and supported multiple life
                processes. Some units contained only some elements of the physical or
                biological features necessary to support the elfin-woods warbler's
                particular use of that habitat.
                 The critical habitat designation is defined by the map or maps, as
                modified by any accompanying regulatory text, presented at the end of
                this document under Regulation
                [[Page 39084]]
                Promulgation. We include more detailed information on the boundaries of
                the critical habitat designation in the discussion of individual units
                below. We will make the coordinates or plot points or both on which
                each map is based available to the public on http://www.regulations.gov
                under Docket No. FWS-R4-ES-2020-0030 and at http://www.fws.gov/caribbean.
                Final Critical Habitat Designation
                 We are designating approximately 27,488 acres (11,125 hectares) in
                three units as critical habitat for elfin-woods warbler. The critical
                habitat areas described below constitute our best assessment of areas
                that meet the definition of critical habitat for the elfin-woods
                warbler. Those three units are: (1) Maricao, (2) El Yunque, and (3)
                Carite. Table 1 shows the name, occupancy of the unit, municipality,
                land ownership, and approximate area of the designated critical habitat
                units for the elfin-woods warbler.
                 Table 1--Location, Occupancy Status, Ownership, and Size of Elfin-Woods Warbler Critical Habitat Units
                --------------------------------------------------------------------------------------------------------------------------------------------------------
                 Land ownership in acres (hectares)
                 Unit Occupied Municipality --------------------------------------------------------- Total area in
                 Federal Commonwealth Private acres (hectares)
                --------------------------------------------------------------------------------------------------------------------------------------------------------
                1: Maricao...................... Yes............. Maricao, San German, 0 8,861 (3,586) 4,117 (1,666) 12,978 (5,252)
                 Sabana Grande, Yauco.
                2: El Yunque.................... Yes............. R[iacute]o Grande, 11,430 (4,626) 0 0 11,430 (4,626)
                 Canovanas, Las Piedras,
                 Naguabo, Ceiba.
                3: Carite....................... No.............. Cayey, San Lorenzo, 0 3,080 (1,247) 0 3,080 (1,247)
                 Guayama, Patillas.
                 ---------------------------------------------------------------------------
                 Totals...................... ................ ........................ 11,430 (4,626) 11,941 (4,833) 4,117 (1,666) 27,488 (11,125)
                --------------------------------------------------------------------------------------------------------------------------------------------------------
                Note: Area sizes may not sum due to rounding.
                 We present brief descriptions of all units, and reasons why they
                meet the definition of critical habitat for elfin-woods warbler, below.
                Unit 1: Maricao
                 Unit 1 consists of 12,978 ac (5,252 ha). Approximately 8,861 ac
                (3,586 ha) are owned by the Commonwealth and managed by the PRDNER, and
                4,117 ac (1,666 ha) are in private ownership. This unit is located
                within the municipalities of Maricao, San Germ[aacute]n, Sabana Grande,
                and Yauco and encompasses the majority of the Maricao Commonwealth
                Forest. The unit is located north of State Road PR-2, south of State
                Road PR-105, and approximately 65 miles (mi) (105 kilometers (km)) west
                of the International Airport Luis Mu[ntilde]oz Marin. This unit is
                within the geographical area occupied by the elfin-woods warbler at the
                time of listing. This unit contains all the PBFs and a core population
                of the species, and will likely contribute to range expansion of the
                elfin-woods warbler by serving as a source of birds to found elfin-
                woods warbler populations in Carite, which is currently unoccupied but
                contains the PBFs.
                 The PBFs in this unit may require special considerations or
                protection to address the following threats or potential threats that
                may result in changes in the composition or abundance of vegetation
                within this unit: Loss, fragmentation, and degradation of habitat due
                to unsustainable agricultural practices; hurricanes; and human-induced
                fires.
                Unit 2: El Yunque
                 Unit 2 consists of 11,430 ac (4,626 ha) of federally owned land
                managed by the U.S. Forest Service (EYNF). It is located within the
                municipalities of R[iacute]o Grande, Canovanas, Las Piedras, Naguabo,
                and Ceiba. The unit is located east of State Road PR-186, north of
                State Road PR-31, and approximately 15 mi (24 km) east of the
                International Airport Luis Mu[ntilde]oz Marin. This unit is within the
                geographical area occupied by the elfin-woods warbler at the time of
                listing and contains PBFs 1(b) and 1(c) (see Physical or Biological
                Features Essential to the Conservation of the Species, above). This
                unit represents a core population of the species and helps to maintain
                the elfin-woods warbler's geographical range.
                 The PBFs in this unit may require special considerations or
                protection to reduce threats or potential threats from hurricanes and
                human-induced fires, which may be exacerbated by the effects of climate
                change.
                Unit 3: Carite
                 Unit 3 consists of 3,080 ac (1,247 ha) of lands owned by the
                Commonwealth and managed by the PRDNER. It is located within the
                municipalities of Cayey, San Lorenzo, Guayama, and Patillas. The unit
                is located within the CCF west of State Road PR-7740 and State Road PR-
                184 that runs within the CCF, and approximately 23 mi (37 km) south of
                the International Airport Luis Mu[ntilde]oz Marin. This unit was not
                occupied by the elfin-woods warbler at the time of listing and is
                considered to be essential for the conservation of the species. As
                discussed above (see Criteria Used to Identify Critical Habitat), this
                unit currently has the habitat features, including all of the PBFs, to
                support the elfin-woods warbler. Therefore, this unit provides an
                opportunity for expansion of the species' documented current range into
                an area that was previously occupied; this potential expansion will
                help to increase the redundancy and resiliency of the species.
                Therefore, we conclude that this unit is essential for the conservation
                of the elfin-woods warbler.
                Effects of Critical Habitat Designation
                Section 7 Consultation
                 Section 7(a)(2) of the Act requires Federal agencies, including the
                Service, to ensure that any action they fund, authorize, or carry out
                is not likely to jeopardize the continued existence of any endangered
                species or threatened species or result in the destruction or adverse
                modification of designated critical habitat of such species. In
                addition, section 7(a)(4) of the Act requires Federal agencies to
                confer with the Service on any agency action which is likely to
                jeopardize the continued existence of any species proposed to be listed
                under the Act or result in the destruction or adverse modification of
                proposed critical habitat.
                 We published a final regulation with a revised definition of
                destruction or adverse modification on August 27, 2019 (84 FR 44976).
                Destruction or adverse modification means a direct or indirect
                alteration that appreciably diminishes the value of critical habitat
                [[Page 39085]]
                as a whole for the conservation of a listed species.
                 If a Federal action may affect a listed species or its critical
                habitat, the responsible Federal agency (action agency) must enter into
                consultation with us. Examples of actions that are subject to the
                section 7 consultation process are actions on State, tribal, local, or
                private lands that require a Federal permit (such as a permit from the
                U.S. Army Corps of Engineers under section 404 of the Clean Water Act
                (33 U.S.C. 1251 et seq.) or a permit from the Service under section 10
                of the Act) or that involve some other Federal action (such as funding
                from the Federal Highway Administration, Federal Aviation
                Administration, or the Federal Emergency Management Agency). Federal
                actions not affecting listed species or critical habitat--and actions
                on State, tribal, local, or private lands that are not federally
                funded, authorized, or carried out by a Federal agency--do not require
                section 7 consultation.
                 Compliance with the requirements of section 7(a)(2) is documented
                through our issuance of:
                 (1) A concurrence letter for Federal actions that may affect, but
                are not likely to adversely affect, listed species or critical habitat;
                or
                 (2) A biological opinion for Federal actions that may affect and
                are likely to adversely affect, listed species or critical habitat.
                 When we issue a biological opinion concluding that a project is
                likely to jeopardize the continued existence of a listed species and/or
                destroy or adversely modify critical habitat, we provide reasonable and
                prudent alternatives to the project, if any are identifiable, that
                would avoid the likelihood of jeopardy and/or destruction or adverse
                modification of critical habitat. We define ``reasonable and prudent
                alternatives'' (at 50 CFR 402.02) as alternative actions identified
                during consultation that:
                 (1) Can be implemented in a manner consistent with the intended
                purpose of the action,
                 (2) Can be implemented consistent with the scope of the Federal
                agency's legal authority and jurisdiction,
                 (3) Are economically and technologically feasible, and
                 (4) Would, in the Director's opinion, avoid the likelihood of
                jeopardizing the continued existence of the listed species and/or avoid
                the likelihood of destroying or adversely modifying critical habitat.
                 Reasonable and prudent alternatives can vary from slight project
                modifications to extensive redesign or relocation of the project. Costs
                associated with implementing a reasonable and prudent alternative are
                similarly variable.
                 Regulations at 50 CFR 402.16 set forth requirements for Federal
                agencies to reinitiate formal consultation on previously reviewed
                actions. These requirements apply when the Federal agency has retained
                discretionary involvement or control over the action (or the agency's
                discretionary involvement or control is authorized by law) and,
                subsequent to the previous consultation, we have listed a new species
                or designated critical habitat that may be affected by the Federal
                action, or the action has been modified in a manner that affects the
                species or critical habitat in a way not considered in the previous
                consultation. In such situations, Federal agencies sometimes may need
                to request reinitiation of consultation with us, but the regulations
                also specify some exceptions to the requirement to reinitiate
                consultation on specific land management plans after subsequently
                listing a new species or designating new critical habitat. See the
                regulations for a description of those exceptions.
                Application of the ``Destruction or Adverse Modification'' Standard
                 The key factor related to the destruction or adverse modification
                determination is whether implementation of the proposed Federal action
                directly or indirectly alters the designated critical habitat in a way
                that appreciably diminishes the value of the critical habitat as a
                whole for the conservation of the listed species. As discussed above,
                the role of critical habitat is to support physical or biological
                features essential to the conservation of a listed species and provide
                for the conservation of the species.
                 Section 4(b)(8) of the Act requires us to briefly evaluate and
                describe, in any proposed or final regulation that designates critical
                habitat, activities involving a Federal action that may violate section
                7(a)(2) of the Act by destroying or adversely modifying such habitat,
                or that may be affected by such designation.
                 Activities that the Services may, during a consultation under
                section 7(a)(2) of the Act, find are likely to destroy or adversely
                modify critical habitat include, but are not limited to:
                 (1) Actions that would significantly alter the structure and
                function of active shade-grown coffee plantations, abandoned coffee
                plantations, and/or agricultural lands with native forest cover and a
                closed canopy. These actions or activities may include, but are not
                limited to, deforestation, conversion of shade-grown coffee to sun-
                grown coffee plantations, and unsustainable agricultural practices
                (i.e., agricultural and silvicultural practices other than sun-to-
                shade-grown coffee conversion, and herbicide and pesticide use outside
                coffee plantations). These actions could degrade the habitat used by
                the elfin-woods warbler for feeding, reproducing, and sheltering.
                 (2) Actions that would significantly alter the vegetation structure
                in and around the Podocarpus, dwarf, or Palo Colorado forests and
                forest associations. These actions or activities may include, but are
                not limited to, habitat modification (e.g., deforestation,
                fragmentation, loss, introduction of nonnative species, expansion or
                construction of communication facilities, expansion of recreational
                facilities, pipeline construction, bridge construction, road
                rehabilitation and maintenance, habitat management), Federal and State
                trust species reintroductions, trail maintenance, camping area
                maintenance, research, repair and restoration of landslides, and any
                other activities that are not conducted in accordance with the
                consultation and planning requirements for listed species under section
                7 of the Act. These activities could alter the habitat structure
                essential to the elfin-woods warbler and may create suitable conditions
                for other species that compete with or prey upon the elfin-woods
                warbler or displace the species from its habitat.
                Exemptions
                Application of Section 4(a)(3) of the Act
                 Section 4(a)(3)(B)(i) of the Act (16 U.S.C. 1533(a)(3)(B)(i))
                provides that: ``The Secretary shall not designate as critical habitat
                any lands or other geographical areas owned or controlled by the
                Department of Defense, or designated for its use, that are subject to
                an integrated natural resources management plan (INRMP) prepared under
                section 101 of the Sikes Act (16 U.S.C. 670a), if the Secretary
                determines in writing that such plan provides a benefit to the species
                for which critical habitat is proposed for designation.'' There are no
                Department of Defense lands with a completed INRMP within the final
                critical habitat designation.
                Consideration of Impacts Under Section 4(b)(2) of the Act
                 Section 4(b)(2) of the Act states that the Secretary shall
                designate and make revisions to critical habitat on the basis of the
                best available scientific data after
                [[Page 39086]]
                taking into consideration the economic impact, national security
                impact, and any other relevant impact of specifying any particular area
                as critical habitat. The Secretary may exclude an area from critical
                habitat if he determines that the benefits of such exclusion outweigh
                the benefits of specifying such area as part of the critical habitat,
                unless he determines, based on the best scientific data available, that
                the failure to designate such area as critical habitat will result in
                the extinction of the species. In making that determination, the
                statute on its face, as well as the legislative history, are clear that
                the Secretary has broad discretion regarding which factor(s) to use and
                how much weight to give to any factor.
                 The first sentence in section 4(b)(2) of the Act requires that we
                take into consideration the economic, national security, or other
                relevant impacts of designating any particular area as critical
                habitat. We describe below the process that we undertook for taking
                into consideration each category of impacts and our analyses of the
                relevant impacts.
                Consideration of Economic Impacts
                 Section 4(b)(2) of the Act and its implementing regulations require
                that we consider the economic impact that may result from a designation
                of critical habitat. To assess the probable economic impacts of a
                designation, we must first evaluate specific land uses or activities
                and projects that may occur in the area of the critical habitat. We
                then must evaluate the impacts that a specific critical habitat
                designation may have on restricting or modifying specific land uses or
                activities for the benefit of the species and its habitat within the
                areas proposed. We then identify which conservation efforts may be the
                result of the species being listed under the Act versus those
                attributed solely to the designation of critical habitat for this
                particular species. The probable economic impact of a proposed critical
                habitat designation is analyzed by comparing scenarios both ``with
                critical habitat'' and ``without critical habitat.''
                 The ``without critical habitat'' scenario represents the baseline
                for the analysis, which includes the existing regulatory and socio-
                economic burden imposed on landowners, managers, or other resource
                users potentially affected by the designation of critical habitat
                (e.g., under the Federal listing as well as other Federal, State, and
                local regulations). The baseline, therefore, represents the costs of
                all efforts attributable to the listing of the species under the Act
                (i.e., conservation of the species and its habitat incurred regardless
                of whether critical habitat is designated). The ``with critical
                habitat'' scenario describes the incremental impacts associated
                specifically with the designation of critical habitat for the species.
                The incremental conservation efforts and associated impacts would not
                be expected without the designation of critical habitat for the
                species. In other words, the incremental costs are those attributable
                solely to the designation of critical habitat, above and beyond the
                baseline costs. These are the costs we use when evaluating the benefits
                of inclusion and exclusion of particular areas from the final
                designation of critical habitat should we choose to conduct a
                discretionary 4(b)(2) exclusion analysis.
                 For this particular designation, we developed an incremental
                effects memorandum (IEM) considering the probable incremental economic
                impacts that may result from the proposed designation of critical
                habitat. The information contained in our IEM was then used to develop
                a screening analysis of the probable effects of the designation of
                critical habitat for the elfin-woods warbler (Abt Associates, Inc.
                2016). We began by conducting a screening analysis of the proposed
                designation of critical habitat in order to focus our analysis on the
                key factors that are likely to result in incremental economic impacts.
                The purpose of the screening analysis is to filter out particular
                geographic areas of critical habitat that are already subject to such
                protections and are, therefore, unlikely to incur incremental economic
                impacts. In particular, the screening analysis considers baseline costs
                (i.e., absent critical habitat designation) and includes probable
                economic impacts where land and water use may be subject to
                conservation plans, land management plans, best management practices,
                or regulations that protect the habitat area as a result of the Federal
                listing status of the species. Ultimately, the screening analysis
                allows us to focus our analysis on evaluating the specific areas or
                sectors that may incur probable incremental economic impacts as a
                result of the designation. The screening analysis also assesses whether
                units are unoccupied by the species and thus may require additional
                management or conservation efforts as a result of the critical habitat
                designation for the species; these additional efforts may incur
                incremental economic impacts. This screening analysis combined with the
                information contained in our IEM are what we consider our draft
                economic analysis (DEA) of the proposed critical habitat designation
                for the elfin-woods warbler; our DEA is summarized in the narrative
                below. The DEA, dated March 7, 2016, was made available for public
                review from June 23, 2016, through August 22, 2016 (81 FR 40632). We
                did not receive any public comments on the DEA. A copy of the DEA may
                be obtained by contacting the Caribbean Ecological Services Field
                Office (see ADDRESSES) or by downloading from the internet at http://www.regulations.gov.
                 Executive Orders (E.O.s) 12866 and 13563 direct Federal agencies to
                assess the costs and benefits of available regulatory alternatives in
                quantitative (to the extent feasible) and qualitative terms. Consistent
                with the E.O. regulatory analysis requirements, our effects analysis
                under the Act may take into consideration impacts to both directly and
                indirectly affected entities, where practicable and reasonable. If
                sufficient data are available, we assess to the extent practicable the
                probable impacts to both directly and indirectly affected entities. As
                part of our screening analysis, we considered the types of economic
                activities that are likely to occur within the areas likely affected by
                the critical habitat designation. In our evaluation of the probable
                incremental economic impacts that may result from the proposed
                designation of critical habitat for the elfin-woods warbler, first we
                identified, in the IEM dated December 7, 2015, probable incremental
                economic impacts associated with the following categories of
                activities: Forest management, silviculture/timber management,
                implementation of conservation/restoration practices, human-induced
                fire management, development or improvement of existing infrastructure
                (e.g., roads, water intakes, water pipelines, electric transmission
                lines), recreation facilities, agriculture, and single house
                development funded by the U.S. Department of Housing and Urban
                Development (HUD). We considered each industry or category
                individually. Additionally, we considered whether their activities have
                any Federal involvement. Critical habitat designation generally will
                not affect activities that do not have any Federal involvement; under
                the Act, designation of critical habitat only affects activities
                conducted, funded, permitted, or authorized by Federal agencies. In
                areas where the elfin-woods warbler is present, Federal agencies
                already are required to consult with the Service under section 7 of the
                Act on activities they fund, permit, or implement that may affect the
                species. When this final critical habitat designation rule becomes
                [[Page 39087]]
                effective, consultations to avoid the destruction or adverse
                modification of critical habitat will be incorporated into the existing
                consultation process.
                 In our IEM, we attempted to clarify the distinction between the
                effects that will result from the species being listed and those
                attributable to the critical habitat designation (i.e., difference
                between the jeopardy and adverse modification standards) for the elfin-
                woods warbler's critical habitat. Because the majority of the critical
                habitat units are already managed for the conservation of natural
                resources, all units have co-occurring federally listed species, and
                two of the three units are occupied by the elfin-woods warbler, it is
                unlikely that costs will result from section 7 consultations
                considering critical habitat alone, consultations resulting in adverse
                modifications alone, or project modifications attributable to critical
                habitat alone. The only incremental costs predicted are the
                administrative costs due to additional consideration of adverse
                modification of critical habitat during section 7 consultations.
                 Based on estimates from existing section 7 consultations on a
                surrogate listed species, the Puerto Rican sharp-shinned hawk, the DEA
                predicts that 5.4 requests for technical assistance, 2.4 informal
                consultations, and 0.6 formal consultations per year will consider
                critical habitat for the elfin-woods warbler. The 363 ac (146.9 ha) we
                are including in Unit 1 of our critical habitat designation, after the
                proposed designation and DEA were complete, does not significantly
                alter the economic predictions. Within this 363 ac, there have been no
                consultations and one species list request in the past 5 years.
                 In addition, because there are other federally listed species in
                all units of the critical habitat for elfin-woods warbler, the Service
                finds that the designation of critical habitat for the elfin-woods
                warbler is unlikely to lead to changes in permitting processes by
                Commonwealth or local agencies or other land managers.
                 We note that ``any project modifications or conservation measures
                recommended to prevent adverse modification of the elfin-woods
                warbler's critical habitat will not differ from project modifications
                and conservation measures recommended to prevent the jeopardy of other
                federally listed co-occurring species in the area (e.g., Puerto Rican
                sharp-shinned hawk)'' (Abt Associates, Incorporated 2016, p. 11).
                Federally listed species occupy areas in the three critical habitat
                units for the elfin-woods warbler. Therefore, we do not expect
                substantial impacts within any geographic area or to any sector as a
                result of this critical habitat designation.
                 Based on peer review comments that identified an area that is
                occupied by the species and has the PBFs that support the species, we
                added 363 ac (146.9 ha) to proposed critical habitat in Unit 1
                (Maricao). This added area consists of 355 ac within lands managed for
                conservation by the Puerto Rico Department of Natural and Environmental
                Resources, with the remaining 8 ac privately owned. The incremental
                economic effects of this addition are minimal, because the area being
                added is 1.3 percent of the total critical habitat, predominantly
                contains lands managed for conservation, and harbors federally listed
                species covered under section 7 of the Act.
                 Based on the finding that the critical habitat designation will
                have minimal impact on land use or other activities (i.e., there is
                little incremental difference due to the designation), the DEA
                concludes that benefits will also be minimal. Possible benefits, aside
                from the conservation of elfin-woods warbler, could include cultural
                heritage benefits and other non-use benefits. Due to limited data
                availability, however, the DEA does not monetize these benefits.
                Exclusions Based on Economic Impacts
                 The first sentence of section 4(b)(2) of the Act requires the
                Service to consider the economic impacts (as well as the impacts on
                national security and any other relevant impacts) of designating
                critical habitat. In addition, economic impacts may, for some
                particular areas, play an important role in the discretionary section
                4(b)(2) exclusion analysis under the second sentence of section
                4(b)(2). In both contexts, the Service has considered the probable
                incremental economic impacts of the designation. When the Service
                undertakes a discretionary section 4(b)(2) exclusion analysis with
                respect to a particular area, we weigh the economic benefits of
                exclusion (and any other benefits of exclusion) against any benefits of
                inclusion (primarily the conservation value of designating the area).
                The conservation value may be influenced by the level of effort needed
                to manage degraded habitat to the point where it could support the
                listed species.
                 The Service uses its discretion in determining how to weigh
                probable incremental economic impacts against conservation value. The
                nature of the probable incremental economic impacts, and not
                necessarily a particular threshold level, triggers considerations of
                exclusions based on probable incremental economic impacts. For example,
                if an economic analysis indicates high probable incremental impacts of
                designating a particular critical habitat unit of lower conservation
                value (relative to the remainder of the designation), the Service may
                consider exclusion of that particular unit.
                 As discussed above, the Service considered the economic impacts of
                the critical habitat designation and the Secretary is not exercising
                his discretion to exclude any areas from this designation of critical
                habitat for the elfin-woods warbler based on economic impacts.
                Exclusions Based on Impacts on National Security and Homeland Security
                 Under section 4(b)(2) of the Act, we consider whether there are
                lands where a national security impact might exist. We have determined
                that the lands within the final designation of critical habitat for the
                elfin-woods warbler are not owned or managed by the Department of
                Defense or Department of Homeland Security, and, therefore, we
                anticipate no impact on national security. Consequently, the Secretary
                is not exercising his discretion to exclude any areas from the final
                designation based on impacts on national security.
                Exclusions Based on Other Relevant Impacts
                 Under section 4(b)(2) of the Act, we consider any other relevant
                impacts, in addition to economic impacts and impacts on national
                security. We consider a number of factors including whether there are
                permitted conservation plans covering the species in the area such as
                HCPs, safe harbor agreements, or candidate conservation agreements with
                assurances, or whether there are non-permitted conservation agreements
                and partnerships that would be encouraged by designation of, or
                exclusion from, critical habitat. In addition, we look at the existence
                of tribal conservation plans and partnerships and consider the
                government-to-government relationship of the United States with tribal
                entities. We also consider any social impacts that might occur because
                of the designation.
                 In preparing this final rule, we have determined that some areas
                within the final designation are included in management plans or other
                conservation agreements such as the Service's Wildlife Conservation
                Extension Agreements with private landowners, Natural Resources
                Conservation Service's conservation contracts with private landowners,
                cooperative
                [[Page 39088]]
                agreements with nongovernmental organizations (NGOs), and the CCA
                signed at the end of 2014 among the Service, U.S. Forest Service, and
                PRDNER to implement conservation practices for the recovery of the
                elfin-woods warbler within EYNF and MCF.
                 Although the initiatives with private landowners and NGOs promote
                the restoration and enhancement of elfin-woods warbler habitat adjacent
                to the EYNF and MCF, potential challenges such as limited resources and
                uncertainty about landowners' participation may affect the
                implementation of conservation practices that mitigate impacts of
                agricultural practices and ensure the conservation of the species'
                essential habitat. We do not anticipate any negative effects of
                designating critical habitat in areas where existing partnerships
                occur. Further, there are no tribal lands in Puerto Rico. Therefore,
                the Secretary is not exercising his discretion to exclude any areas
                from the final designation based on other relevant impacts.
                Required Determinations
                Regulatory Planning and Review (Executive Orders 12866 and 13563)
                 Executive Order 12866 provides that the Office of Information and
                Regulatory Affairs in the Office of Management and Budget (OMB) will
                review all significant rules. The Office of Information and Regulatory
                Affairs has waived their review regarding their significance
                determination of this rule.
                 Executive Order 13563 reaffirms the principles of E.O. 12866 while
                calling for improvements in the nation's regulatory system to promote
                predictability, to reduce uncertainty, and to use the best, most
                innovative, and least burdensome tools for achieving regulatory ends.
                The executive order directs agencies to consider regulatory approaches
                that reduce burdens and maintain flexibility and freedom of choice for
                the public where these approaches are relevant, feasible, and
                consistent with regulatory objectives. E.O. 13563 emphasizes further
                that regulations must be based on the best available science and that
                the rulemaking process must allow for public participation and an open
                exchange of ideas. We have developed this rule in a manner consistent
                with these requirements.
                Regulatory Flexibility Act (5 U.S.C. 601 et seq.)
                 Under the Regulatory Flexibility Act (RFA; 5 U.S.C. 601 et seq.),
                as amended by the Small Business Regulatory Enforcement Fairness Act of
                1996 (SBREFA; 5 U.S.C. 801 et seq.), whenever an agency is required to
                publish a notice of rulemaking for any proposed or final rule, it must
                prepare and make available for public comment a regulatory flexibility
                analysis that describes the effects of the rule on small entities
                (i.e., small businesses, small organizations, and small government
                jurisdictions). However, no regulatory flexibility analysis is required
                if the head of the agency certifies the rule will not have a
                significant economic impact on a substantial number of small entities.
                The SBREFA amended the RFA to require Federal agencies to provide a
                certification statement of the factual basis for certifying that the
                rule will not have a significant economic impact on a substantial
                number of small entities.
                 According to the Small Business Administration, small entities
                include small organizations such as independent nonprofit
                organizations; small governmental jurisdictions, including school
                boards and city and town governments that serve fewer than 50,000
                residents; and small businesses (13 CFR 121.201). Small businesses
                include manufacturing and mining concerns with fewer than 500
                employees, wholesale trade entities with fewer than 100 employees,
                retail and service businesses with less than $5 million in annual
                sales, general and heavy construction businesses with less than $27.5
                million in annual business, special trade contractors doing less than
                $11.5 million in annual business, and agricultural businesses with
                annual sales less than $750,000. To determine if potential economic
                impacts to these small entities are significant, we considered the
                types of activities that might trigger regulatory impacts under this
                designation as well as types of project modifications that may result.
                In general, the term ``significant economic impact'' is meant to apply
                to a typical small business firm's business operations.
                 Under the RFA, as amended, and as understood in the light of recent
                court decisions, Federal agencies are required to evaluate the
                potential incremental impacts of rulemaking only on those entities
                directly regulated by the rulemaking itself and, therefore, are not
                required to evaluate the potential impacts to indirectly regulated
                entities. The regulatory mechanism through which critical habitat
                protections are realized is section 7 of the Act, which requires
                Federal agencies, in consultation with the Service, to ensure that any
                action authorized, funded, or carried out by the agency is not likely
                to destroy or adversely modify critical habitat. Therefore, under
                section 7, only Federal action agencies are directly subject to the
                specific regulatory requirement (avoiding destruction and adverse
                modification) imposed by critical habitat designation. Consequently, it
                is our position that only Federal action agencies will be directly
                regulated by this designation. There is no requirement under RFA to
                evaluate the potential impacts to entities not directly regulated.
                Moreover, Federal agencies are not small entities. Therefore, because
                no small entities are directly regulated by this rulemaking, the
                Service certifies that the final critical habitat designation will not
                have a significant economic impact on a substantial number of small
                entities.
                 During the development of this final rule, we reviewed and
                evaluated all information submitted during the comment period that may
                pertain to our consideration of the probable incremental economic
                impacts of this critical habitat designation. Based on this
                information, we affirm our certification that this final critical
                habitat designation will not have a significant economic impact on a
                substantial number of small entities, and a regulatory flexibility
                analysis is not required.
                Executive Order 13771
                 We do not believe this rule is an E.O. 13771 (``Reducing Regulation
                and Controlling Regulatory Costs'') (82 FR 9339, February 3, 2017)
                regulatory action because we believe this rule is not significant under
                E.O. 12866; however, the Office of Information and Regulatory Affairs
                has waived their review regarding their E.O. 12866 significance
                determination of this rule.
                Energy Supply, Distribution, or Use--Executive Order 13211
                 Executive Order 13211 (Actions Concerning Regulations That
                Significantly Affect Energy Supply, Distribution, or Use) requires
                agencies to prepare Statements of Energy Effects when undertaking
                certain actions. OMB has provided guidance for implementing this
                Executive Order that outlines nine outcomes that may constitute ``a
                significant adverse effect'' when compared to not taking the regulatory
                action under consideration. Our economic analysis finds that none of
                these criteria are relevant to this analysis. Thus, based on
                information in the economic analysis, energy-related impacts associated
                with elfin-woods warbler conservation activities within critical
                habitat are not expected. As such, the designation of critical habitat
                is not expected to significantly affect
                [[Page 39089]]
                energy supplies, distribution, or use. Therefore, this action is not a
                significant energy action, and no Statement of Energy Effects is
                required.
                Unfunded Mandates Reform Act (2 U.S.C. 1501 et seq.)
                 In accordance with the Unfunded Mandates Reform Act (2 U.S.C. 1501
                et seq.), we make the following findings:
                 (1) This rule will not produce a Federal mandate. In general, a
                Federal mandate is a provision in legislation, statute, or regulation
                that would impose an enforceable duty upon State, local, or tribal
                governments, or the private sector, and includes both ``Federal
                intergovernmental mandates'' and ``Federal private sector mandates.''
                These terms are defined in 2 U.S.C. 658(5)-(7). ``Federal
                intergovernmental mandate'' includes a regulation that ``would impose
                an enforceable duty upon State, local, or tribal governments'' with two
                exceptions. It excludes ``a condition of Federal assistance.'' It also
                excludes ``a duty arising from participation in a voluntary Federal
                program,'' unless the regulation ``relates to a then-existing Federal
                program under which $500,000,000 or more is provided annually to State,
                local, and tribal governments under entitlement authority,'' if the
                provision would ``increase the stringency of conditions of assistance''
                or ``place caps upon, or otherwise decrease, the Federal Government's
                responsibility to provide funding,'' and the State, local, or tribal
                governments ``lack authority'' to adjust accordingly. At the time of
                enactment, these entitlement programs were: Medicaid; Aid to Families
                with Dependent Children work programs; Child Nutrition; Food Stamps;
                Social Services Block Grants; Vocational Rehabilitation State Grants;
                Foster Care, Adoption Assistance, and Independent Living; Family
                Support Welfare Services; and Child Support Enforcement. ``Federal
                private sector mandate'' includes a regulation that ``would impose an
                enforceable duty upon the private sector, except (i) a condition of
                Federal assistance or (ii) a duty arising from participation in a
                voluntary Federal program.''
                 The designation of critical habitat does not impose a legally
                binding duty on non-Federal Government entities or private parties.
                Under the Act, the only regulatory effect is that Federal agencies must
                ensure that their actions do not destroy or adversely modify critical
                habitat under section 7. While non-Federal entities that receive
                Federal funding, assistance, or permits, or that otherwise require
                approval or authorization from a Federal agency for an action, may be
                indirectly impacted by the designation of critical habitat, the legally
                binding duty to avoid destruction or adverse modification of critical
                habitat rests squarely on the Federal agency. Furthermore, to the
                extent that non-Federal entities are indirectly impacted because they
                receive Federal assistance or participate in a voluntary Federal aid
                program, the Unfunded Mandates Reform Act would not apply, nor would
                critical habitat shift the costs of the large entitlement programs
                listed above onto State governments.
                 (2) We do not believe that this rule will significantly or uniquely
                affect small governments because the majority of the critical habitat
                units are already managed for natural resource conservation by the
                Federal government or the Commonwealth of Puerto Rico, and all critical
                habitat units have co-occurring federally listed species that are
                already being considered by the Commonwealth and municipalities for any
                actions proposed in the area. Therefore, a Small Government Agency Plan
                is not required.
                Takings--Executive Order 12630
                 In accordance with E.O. 12630 (Government Actions and Interference
                with Constitutionally Protected Private Property Rights), we have
                analyzed the potential takings implications of designating critical
                habitat for elfin-woods warbler in a takings implications assessment.
                The Act does not authorize the Service to regulate private actions on
                private lands or confiscate private property as a result of critical
                habitat designation. Designation of critical habitat does not affect
                land ownership, or establish any closures, or restrictions on use of or
                access to the designated areas. Furthermore, the designation of
                critical habitat does not affect landowner actions that do not require
                Federal funding or permits, nor does it preclude development of habitat
                conservation programs or issuance of incidental take permits to permit
                actions that do require Federal funding or permits to go forward.
                However, Federal agencies are prohibited from carrying out, funding, or
                authorizing actions that would destroy or adversely modify critical
                habitat. A takings implications assessment has been completed and
                concludes that this designation of critical habitat for elfin-woods
                warbler does not pose significant takings implications for lands within
                or affected by the designation.
                Federalism--Executive Order 13132
                 In accordance with E.O. 13132 (Federalism), this rule does not have
                significant Federalism effects. A Federalism assessment is not
                required. In keeping with Department of the Interior and Department of
                Commerce policy, we requested information from, and coordinated
                development of the proposed critical habitat designation with,
                appropriate State resource agencies in Puerto Rico. We did not receive
                comments from Federal agencies for this rule. From a federalism
                perspective, the designation of critical habitat directly affects only
                the responsibilities of Federal agencies. The Act imposes no other
                duties with respect to critical habitat, either for States and local
                governments, or for anyone else. As a result, the rule does not have
                substantial direct effects either on the States, or on the relationship
                between the national government and the States, or on the distribution
                of powers and responsibilities among the various levels of government.
                The designation may have some benefit to these governments because the
                areas that contain the features essential to the conservation of the
                species are more clearly defined, and the physical or biological
                features of the habitat necessary to the conservation of the species
                are specifically identified. This information does not alter where and
                what federally sponsored activities may occur. However, it may assist
                these local governments in long-range planning because they no longer
                have to wait for case-by-case section 7 consultations to occur.
                 Where State and local governments require approval or authorization
                from a Federal agency for actions that may affect critical habitat,
                consultation under section 7(a)(2) would be required. While non-Federal
                entities that receive Federal funding, assistance, or permits, or that
                otherwise require approval or authorization from a Federal agency for
                an action, may be indirectly impacted by the designation of critical
                habitat, the legally binding duty to avoid destruction or adverse
                modification of critical habitat rests squarely on the Federal agency.
                Civil Justice Reform--Executive Order 12988
                 In accordance with Executive Order 12988 (Civil Justice Reform),
                the Office of the Solicitor has determined that the rule does not
                unduly burden the judicial system and that it meets the requirements of
                sections 3(a) and 3(b)(2) of the Order. We are designating critical
                habitat in accordance with the provisions of the Act. To assist the
                public in understanding the habitat needs of the species, this rule
                identifies the elements of physical or biological
                [[Page 39090]]
                features essential to the conservation of the elfin-woods warbler. The
                designated areas of critical habitat are presented on maps, and the
                rule provides several options for the interested public to obtain more
                detailed location information, if desired.
                Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.)
                 This rule does not contain information collection requirements, and
                a submission to the Office of Management and Budget (OMB) under the
                Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.) is not
                required. We may not conduct or sponsor and you are not required to
                respond to a collection of information unless it displays a currently
                valid OMB control number.
                National Environmental Policy Act (42 U.S.C. 4321 et seq.)
                 It is our position that, outside the jurisdiction of the U.S. Court
                of Appeals for the Tenth Circuit, we do not need to prepare
                environmental analyses pursuant to the National Environmental Policy
                Act (NEPA; 42 U.S.C. 4321 et seq.) in connection with designating
                critical habitat under the Act. We published a notice outlining our
                reasons for this determination in the Federal Register on October 25,
                1983 (48 FR 49244). This position was upheld by the U.S. Court of
                Appeals for the Ninth Circuit (Douglas County v. Babbitt, 48 F.3d 1495
                (9th Cir. 1995), cert. denied 516 U.S. 1042 (1996)).
                Government-to-Government Relationship With Tribes
                 In accordance with the President's memorandum of April 29, 1994
                (Government-to-Government Relations with Native American Tribal
                Governments; 59 FR 22951), Executive Order 13175 (Consultation and
                Coordination With Indian Tribal Governments), and the Department of the
                Interior's manual at 512 DM 2, we readily acknowledge our
                responsibility to communicate meaningfully with recognized Federal
                Tribes on a government-to-government basis. In accordance with
                Secretarial Order 3206 of June 5, 1997 (American Indian Tribal Rights,
                Federal-Tribal Trust Responsibilities, and the Endangered Species Act),
                we readily acknowledge our responsibilities to work directly with
                tribes in developing programs for healthy ecosystems, to acknowledge
                that tribal lands are not subject to the same controls as Federal
                public lands, to remain sensitive to Indian culture, and to make
                information available to tribes. As discussed above, there are no
                tribal lands in Puerto Rico, and therefore, we have identified no
                tribal interests that will be affected by this final rulemaking.
                References Cited
                 A complete list of all references cited is available on the
                internet at http://www.regulations.gov under Docket No. FWS-R4-ES-2020-
                0030 and upon request from the Caribbean Ecological Services Field
                Office (see FOR FURTHER INFORMATION CONTACT).
                Authors
                 The primary authors of this rule are the staff members of the U.S.
                Fish and Wildlife Service's Species Assessment Team and the Caribbean
                Ecological Services Field Office.
                List of Subjects in 50 CFR Part 17
                 Endangered and threatened species, Exports, Imports, Reporting and
                recordkeeping requirements, Transportation.
                 Accordingly, we amend part 17, subchapter B of chapter I, title 50
                of the Code of Federal Regulations, as set forth below:
                PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS
                0
                1. The authority citation for part 17 continues to read as follows:
                 Authority: 16 U.S.C. 1361-1407; 1531-1544; and 4201-4245,
                unless otherwise noted.
                0
                2. Amend Sec. 17.11(h) by revising the entry for ``Warbler, elfin-
                woods (Setophaga angelae)'' under ``BIRDS'' in the List of Endangered
                and Threatened Wildlife to read as follows:
                Sec. 17.11 Endangered and threatened wildlife.
                * * * * *
                 (h) * * *
                ----------------------------------------------------------------------------------------------------------------
                 Listing citations and
                 Common name Scientific name Where listed Status applicable rules
                ----------------------------------------------------------------------------------------------------------------
                
                 * * * * * * *
                 Birds
                
                 * * * * * * *
                Warbler, elfin-woods............ Setophaga angelae. Wherever found.... T 81 FR 40534, 6/22/2016;
                 50 CFR 17.41(e); \4d\,
                 50 CFR 17.95(b).\CH\
                
                 * * * * * * *
                ----------------------------------------------------------------------------------------------------------------
                0
                3. In Sec. 17.95, amend paragraph (b) by adding an entry for ``Elfin-
                woods Warbler (Setophaga angelae)'', immediately following the entry
                for ``Least Bell's Vireo (Vireo bellii pusillus)'', to read as set
                forth below:
                Sec. 17.95 Critical habitat--fish and wildlife.
                * * * * *
                 (b) Birds.
                * * * * *
                Elfin-woods Warbler (Setophaga angelae)
                 (1) Critical habitat units are depicted for Puerto Rico, on the
                maps in this entry.
                 (2) Within these areas, the physical or biological features
                essential to the conservation of the elfin-woods warbler consist of the
                following components:
                 (i) Wet and rain montane forest types:
                 (A) Podocarpus forest at elevations between 600 and 900 meters (m)
                (1,968 and 2,952 feet (ft)) with continuous closed canopy of 20 m (66
                ft) in height, dominated by Podocarpus coriaceus trees with well-
                developed understory.
                 (B) Dwarf forest at elevations above 900 m (2,952 ft) with a single
                story of trees between 1 and 6 m (3 and 19 ft) in height, with an
                understory of mosses, epiphytes, and liverworts.
                 (C) Palo Colorado forest at elevations between 600 and 900 m (1,968
                and 2,952 ft) with a closed canopy of approximately 20 m (66 ft) and an
                understory dominated by grasses, ferns, bromeliads, and sedges.
                 (ii) Forested habitat areas that contain:
                 (A) Active shade-grown coffee plantations or forested agricultural
                [[Page 39091]]
                lands that are above 300 m in elevation and dominated primarily by
                native vegetation; or
                 (B) Abandoned coffee plantations or agricultural lands (i.e.,
                agricultural practices were discontinued) with native forest cover and
                a closed canopy found above 300 m in elevation.
                 (iii) Forested habitat (at elevations between 300 and 850 m (984
                and 2,788 ft)) not contained within the habitats described in
                paragraphs (2)(i) and (ii) of this entry:
                 (A) Exposed ridge woodland forest found in valleys, slopes, and
                shallow soils with a more or less continuous canopy at elevations
                ranging from 550 to 750 m (1,804 to 2,460 ft);
                 (B) Timber plantation forest at elevations ranging from 630 to 850
                m (2,066 to 2,788 ft); or
                 (C) Secondary forests dominated by native tree species with a
                closed canopy of approximately 20-30 m (66-100 ft) in height at
                elevations ranging from 300 to 750 m (984 to 2,460 ft).
                 (3) Critical habitat does not include manmade structures (such as
                buildings, aqueducts, runways, roads, and other paved areas) and the
                land on which they are located existing within the legal boundaries on
                July 30, 2020.
                 (4) Critical habitat map units. Data layers defining map units were
                created by delineating habitats that contain at least one or more of
                the physical or biological features defined in paragraph (2) of this
                entry, over a U.S. Department of Agriculture 2007 digital orthophoto
                mosaic, over a base of U.S. Geological Survey digital topographic map
                quadrangle, and with the use of a digital landcover layer. The
                resulting critical habitat unit was then mapped using State Plane North
                American Datum 83 coordinates. The maps in this entry, as modified by
                any accompanying regulatory text, establish the boundaries of the
                critical habitat designation. The coordinates or plot points or both on
                which each map is based are available to the public at the Service's
                internet site, http://www.regulations.gov under Docket No. FWS-R4-ES-
                2020-0030, and at the field office responsible for this designation.
                You may obtain field office location information by contacting one of
                the Service regional offices, the addresses of which are listed at 50
                CFR 2.2.
                 (5) Note: Index map follows:
                BILLING CODE 4333-15-P
                [[Page 39092]]
                [GRAPHIC] [TIFF OMITTED] TR30JN20.082
                 (6) Unit 1: Maricao; Maricao, San Germ[aacute]n, Sabana Grande, and
                Yauco Municipalities, Puerto Rico.
                 (i) General description: Unit 1 consists of 12,978 ac (5,252 ha).
                Approximately 8,861 ac (3,586 ha) are owned by the Commonwealth and
                managed by the Puerto Rico Department of Natural and Environmental
                Resources, and 4,117 ac (1,666 ha) are in private ownership. The unit
                is located north of State Road PR-2, south of State Road PR-105, and
                approximately 105 kilometers 65 mi (105 km) west of the International
                Airport Luis Mu[ntilde]oz Marin.
                 (ii) Map of Unit 1 habitat follows:
                [[Page 39093]]
                [GRAPHIC] [TIFF OMITTED] TR30JN20.083
                 (7) Unit 2: El Yunque; R[iacute]o Grande, Canovanas, Las Piedras,
                Naguabo, and Ceiba Municipalities, Puerto Rico.
                 (i) General description: Unit 2 consists of 11,430 ac (4,626 ha) of
                federally owned land managed by the U.S. Forest Service (El Yunque
                National Forest). The unit is located within El Yunque National Forest,
                east of State Road PR-186, north of State Road PR-31, and approximately
                24 km (15 mi) east of the International Airport Luis Mu[ntilde]oz
                Marin.
                 (ii) Map of Unit 2 follows:
                [[Page 39094]]
                [GRAPHIC] [TIFF OMITTED] TR30JN20.084
                 (8) Unit 3: Carite; Cayey, San Lorenzo, Guayama, and Patillas
                Municipalities, Puerto Rico.
                 (i) General description: Unit 3 consists of 3,080 ac (1,247 ha) of
                lands owned by the Commonwealth and managed by the Puerto Rico
                Department of Natural and Environmental Resources. The unit is located
                within the Carite Commonwealth Forest west of State Road PR-7740 and
                State Road PR-184 that run within the Carite Commonwealth Forest, and
                approximately 23 mi (37 km) south of the International Airport Luis
                Mu[ntilde]oz Marin.
                 (ii) Map of Unit 3 follows:
                [[Page 39095]]
                [GRAPHIC] [TIFF OMITTED] TR30JN20.085
                * * * * *
                Aurelia Skipwith,
                Director, U.S. Fish and Wildlife Service.
                [FR Doc. 2020-12070 Filed 6-29-20; 8:45 am]
                BILLING CODE 4333-15-P
                

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