Air Plan Approval; Massachusetts; Infrastructure State Implementation Plan Requirements for the 2012 PM2.5

Published date20 February 2019
Citation84 FR 5020
Record Number2019-02658
SectionProposed rules
CourtEnvironmental Protection Agency
Federal Register, Volume 84 Issue 34 (Wednesday, February 20, 2019)
[Federal Register Volume 84, Number 34 (Wednesday, February 20, 2019)]
                [Proposed Rules]
                [Pages 5020-5032]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2019-02658]
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                ENVIRONMENTAL PROTECTION AGENCY
                40 CFR Part 52
                [EPA-R01-OAR-2018-0748; FRL-9989-41-Region 1]
                Air Plan Approval; Massachusetts; Infrastructure State
                Implementation Plan Requirements for the 2012 PM2.5 NAAQS; Transport
                Provisions for the 1997, 2006, and 2012 PM2.5 NAAQS
                AGENCY: Environmental Protection Agency (EPA).
                ACTION: Proposed rule.
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                SUMMARY: The Environmental Protection Agency (EPA) is proposing to
                approve most elements of a State Implementation Plan (SIP) revision
                submitted by the Commonwealth of Massachusetts for the infrastructure
                requirements for the 2012 fine particle (PM2.5) National
                Ambient Air Quality Standard (NAAQS), including the interstate
                transport requirements. We are proposing findings of failure to submit
                for the prevention of significant deterioration (PSD) requirements of
                infrastructure SIPs for the 2012 PM2.5 NAAQS. We are also
                proposing several actions related to infrastructure SIP requirements
                for the 1997 and 2006 PM2.5 NAAQS, including approvals for
                previously unaddressed elements and converting certain previous
                conditional approvals to full approval. We are also proposing to
                convert to full approvals previous conditional approvals for the 1997
                and 2008 ozone, 2008 lead, 2010 sulfur dioxide, and 2010 nitrogen
                dioxide NAAQS. Finally, EPA is proposing to approve five new or amended
                definitions regarding the NAAQS and Particulate Matter and a state
                Executive Order regarding consultation by state agencies with local
                governments. This action is being taken under the Clean Air Act.
                DATES: Written comments must be received on or before March 22, 2019.
                ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R01-
                OAR-2018-0748 at https://www.regulations.gov, or via email to
                simcox.alison@epa.gov. For comments submitted at Regulations.gov,
                follow the online instructions for submitting comments. Once submitted,
                comments cannot be edited or removed from Regulations.gov. For either
                manner of submission, the EPA may publish any comment received to its
                public docket. Do not submit electronically any information you
                consider to be Confidential Business Information (CBI) or other
                information whose disclosure is restricted by statute. Multimedia
                submissions (audio, video, etc.) must be accompanied by a written
                comment. The written comment is considered the official comment and
                should include discussion of all points you wish to make. The EPA will
                generally not consider comments or comment contents located outside of
                the primary submission (i.e. on the web, cloud, or other file sharing
                system). For additional submission methods, please contact the person
                identified in the FOR FURTHER INFORMATION CONTACT section. For the full
                EPA public comment policy, information about CBI or multimedia
                submissions, and general guidance on making effective comments, please
                visit http://www.epa.gov/dockets/commenting-epa-dockets. Publicly
                available docket materials are available at https://www.regulations.gov
                or at the U.S. Environmental Protection Agency, EPA Region 1 Office,
                Office of Ecosystem Protection, Air Quality Planning Unit, 5 Post
                Office Square--Suite 100, Boston, MA. EPA requests that if at all
                possible, you contact the contact listed in the FOR FURTHER INFORMATION
                CONTACT section to schedule your inspection. The Regional Office's
                official hours of business are Monday through Friday, 8:30 a.m. to 4:30
                p.m., excluding legal holidays.
                FOR FURTHER INFORMATION CONTACT: Alison C. Simcox, Air Quality Planning
                Unit, U.S. Environmental Protection Agency, EPA New England Regional
                Office, 5 Post Office Square--Suite 100, (Mail code OEP05-2), Boston,
                MA 02109--3912, tel. (617) 918-1684; simcox.alison@epa.gov.
                [[Page 5021]]
                SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,''
                ``us,'' or ``our'' is used, we mean EPA.
                Table of Contents
                I. Background and Purpose
                 A. What Massachusetts SIP submissions does this rulemaking
                address?
                 B. What is the scope of this rulemaking?
                II. What guidance is EPA using to evaluate these SIP submissions?
                III. EPA's review
                 A. Section 110(a)(2)(A)--Emission Limits and Other Control
                Measures
                 B. Section 110(a)(2)(B)--Ambient Air Quality Monitoring/Data
                System
                 C. Section 110(a)(2)(C)--Program for Enforcement of Control
                Measures and for Construction or Modification of Stationary Sources
                 D. Section 110(a)(2)(D)--Interstate Transport
                 E. Section 110(a)(2)(E)--Adequate Resources
                 F. Section 110(a)(2)(F)--Stationary Source Monitoring System
                 G. Section 110(a)(2)(G)--Emergency Powers
                 H. Section 110(a)(2)(H)--Future SIP Revisions
                 I. Section 110(a)(2)(I)--Nonattainment Area Plan or Plan
                Revisions Under Part D
                 J. Section 110(a)(2)(J)--Consultation With Government Officials;
                Public Notifications; Prevention of Significant Deterioration;
                Visibility Protection
                 K. Section 110(a)(2)(K)--Air Quality Modeling/Data
                 L. Section 110(a)(2)(L)--Permitting Fees
                 M. Section 110(a)(2)(M)--Consultation/Participation by Affected
                Local Entities
                 N. Massachusetts Regulation and Executive Order Submitted for
                Incorporation Into the SIP
                IV. Proposed Action
                V. Incorporation by Reference
                VI. Statutory and Executive Order Reviews
                I. Background and Purpose
                A. What Massachusetts SIP submissions does this rulemaking address?
                 This rulemaking addresses a February 9, 2018, submission from the
                Massachusetts Department of Environmental Protection (MassDEP)
                regarding the infrastructure SIP requirements of the CAA for the 2012
                fine particle (PM2.5) \1\ National Ambient Air Quality
                Standard (NAAQS). The February 2018 submission also includes the
                interstate transport requirements for the 2006 and 2012
                PM2.5 NAAQS. In addition, this rulemaking addresses the
                interstate transport requirements for the 1997 PM2.5 NAAQS,
                which the Commonwealth submitted on January 31, 2008. Under sections
                110(a)(1) and (2) of the CAA, States are required to provide
                infrastructure SIP submissions to ensure that State SIPs provide for
                implementation, maintenance, and enforcement of the NAAQS, including
                the 1997, 2006, and 2012 PM2.5 NAAQS.
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                 \1\ PM2.5 refers to particulate matter of 2.5 microns
                or less in diameter, often referred to as ``fine'' particles.
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                 Finally, this rulemaking addresses a portion of a Massachusetts SIP
                submission dated May 14, 2018, which includes five new or amended
                definitions in 310 Code of Massachusetts Regulations (CMR) 7.00.
                B. What is the scope of this rulemaking?
                 EPA is acting on a February 2018 submission from MassDEP that
                address the infrastructure requirements of CAA sections 110(a)(1) and
                110(a)(2) for the 2012 PM2.5 NAAQS. This submission also
                addresses the ``Good Neighbor'' or interstate transport requirements
                for infrastructure SIPs for the 2006 and 2012 PM2.5 NAAQS.
                In addition, EPA is acting on a January 31, 2008, submission from the
                Commonwealth that addresses interstate transport requirements for the
                1997 PM2.5 NAAQS.
                 Whenever EPA promulgates a new or revised NAAQS, CAA section
                110(a)(1) requires states to make SIP submissions to provide for the
                implementation, maintenance, and enforcement of the NAAQS. This
                particular type of SIP submission is commonly referred to as an
                ``infrastructure SIP.'' These submissions must meet the various
                requirements of CAA section 110(a)(2), as applicable. Due to ambiguity
                in some of the language of CAA section 110(a)(2), EPA believes that it
                is appropriate to interpret these provisions in the specific context of
                acting on infrastructure SIP submissions. EPA has previously provided
                comprehensive guidance on the application of these provisions through a
                guidance document for infrastructure SIP submissions and through
                regional actions on infrastructure submissions.\2\ Unless otherwise
                noted below, we are following that existing approach in acting on this
                submission. In addition, in the context of acting on such
                infrastructure submissions, EPA evaluates the submitting state's SIP
                for factual compliance with statutory and regulatory requirements, not
                for the state's implementation of its SIP.\3\ The EPA has other
                authority to address any issues concerning a state's implementation of
                the rules, regulations, consent orders, etc. that comprise its SIP.
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                 \2\ EPA explains and elaborates on these ambiguities and its
                approach to address them in its September 13, 2013 Infrastructure
                SIP Guidance (available at https://www3.epa.gov/airquality/urbanair/sipstatus/docs/Guidance_on_Infrastructure_SIP_Elements_Multipollutant_FINAL_Sept_2013.pdf), as well as in numerous agency actions, including EPA's prior
                action on Massachusetts' infrastructure SIP to address the 1997
                ozone, 2008 lead, 2008 ozone, 2010 nitrogen dioxide, and 2010 sulfur
                dioxide NAAQS. 81 FR 93627 (December 21, 2016).
                 \3\ See U.S. Court of Appeals for the Ninth Circuit decision in
                Montana Environmental Information Center v. EPA, No. 16-71933
                (August 30, 2018).
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                II. What guidance is EPA using to evaluate these SIP submissions?
                 EPA highlighted the statutory requirement to submit infrastructure
                SIPs within 3 years of promulgation of a new NAAQS in an October 2,
                2007, memorandum entitled ``Guidance on SIP Elements Required Under
                Sections 110(a)(1) and (2) for the 1997 8-hour Ozone and
                PM2.5 National Ambient Air Quality Standards'' (2007
                memorandum). EPA has issued additional guidance documents and
                memoranda, including a September 25, 2009, memorandum entitled
                ``Guidance on SIP Elements Required Under Sections 110(a)(1) and (2)
                for the 2006 24-Hour Fine Particle (PM2.5) National Ambient
                Air Quality Standards (NAAQS)'' (2009 memorandum), and a September 13,
                2013, memorandum entitled ``Guidance on Infrastructure State
                Implementation Plan (SIP) Elements under Clean Air Act Sections
                110(a)(1) and 110(a)(2)'' (2013 memorandum).\4\
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                 \4\ These memoranda and other referenced guidance documents and
                memoranda are included in the docket for this action.
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                 With respect to the ``Good Neighbor'' or interstate transport
                requirements for infrastructure SIPs, the most recent relevant EPA
                guidance is a memorandum published on March 17, 2016, entitled
                ``Information on the Interstate Transport ``Good Neighbor'' Provision
                for the 2012 Fine Particulate Matter National Ambient Air Quality
                Standards under Clean Air Act Section 110(a)(2)(D)(i)(I)'' (2016
                memorandum). The 2016 memorandum describes EPA's past approach to
                addressing interstate transport and provides EPA's general review of
                relevant modeling data and air quality projections as they relate to
                the 2012 annual PM2.5 NAAQS. The 2016 memorandum provides
                information relevant to EPA Regional office review of the CAA section
                110(a)(2)(D)(i)(I) ``Good Neighbor'' provision requirements in
                infrastructure SIPs with respect to the 2012 annual PM2.5
                NAAQS.
                III. EPA's Review
                 EPA is soliciting comment on our evaluation of Massachusetts'
                infrastructure SIP submissions as presented in this notice of proposed
                [[Page 5022]]
                rulemaking. Massachusetts' February 9, 2018, submission includes a
                detailed list of Massachusetts Laws and previously SIP-approved Air
                Quality Regulations to show precisely how the various components of its
                EPA-approved SIP meet each of the requirements of section 110(a)(2) of
                the CAA for the 2012 PM2.5 NAAQS. The following review
                evaluates the Commonwealth's submission in light of section 110(a)(2)
                requirements and relevant EPA guidance.
                A. Section 110(a)(2)(A)--Emission Limits and Other Control Measures
                 This section (also referred to as an element) of the Act requires
                SIPs to include enforceable emission limits and other control measures,
                means or techniques, schedules for compliance, and other related
                matters. However, EPA has long interpreted emission limits and control
                measures for attaining the standards as being due when nonattainment
                planning requirements are due.\5\ In the context of an infrastructure
                SIP, EPA is not evaluating the existing SIP provisions for this
                purpose. Instead, EPA is only evaluating whether Massachusetts' SIP has
                basic structural provisions for the implementation of the NAAQS.
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                 \5\ See, for example, EPA's final rule on ``National Ambient Air
                Quality Standards for Lead.'' 73 FR 66964, 67034 (November 12,
                2008).
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                 Massachusetts General Law (M.G.L.) c. 21A, Sec. 8, Executive
                Office of Energy and Environmental Affairs Organization of Departments;
                powers, duties and functions, creates and sets forth the powers and
                duties of the Department of Environmental Protection (MassDEP) within
                the Executive Office of Energy and Environmental Affairs. In addition,
                M.G.L. c.111, Sec. Sec. 142A through 142N, which, collectively, are
                referred to as the Massachusetts Pollution Control Laws, provide
                MassDEP with broad authority to prevent pollution or contamination of
                the atmosphere and to prescribe and establish appropriate regulations.
                Furthermore, M.G.L. c.21A, Sec. 18, Permit applications and compliance
                assurance fees; timeline action schedules; regulations, authorizes
                MassDEP to establish fees applicable to the regulatory programs it
                administers. MassDEP's February 9, 2018, infrastructure SIP for the
                2012 PM2.5 NAAQS included a request to add M.G.L. c.21A,
                Sec. 18 to the Massachusetts SIP. In a letter dated February 6, 2019,
                the state withdrew this request.
                 MassDEP has adopted numerous regulations within the Code of
                Massachusetts Regulations (CMR) in furtherance of the objectives set
                out by these statutes, including 310 CMR 4.00, Timely Action & Fee
                Schedule Regulations, and 310 CMR 7.00, Air Pollution Control
                Regulations. For example, many SIP-approved State air quality
                regulations within 310 CMR 7.00 provide enforceable emission
                limitations and other control measures, means or techniques, schedules
                for compliance, and other related matters that satisfy the requirements
                of the CAA section 110(a)(2)(A) for the 2012 PM2.5 NAAQS,
                including but not limited to, 7.06, Visible Emissions; 7.07, Open
                Burning; 7.08, Incinerators; and 7.29, Emission Standards for Power
                Plants.
                 On May 14, 2018, MassDEP submitted a SIP revision to EPA that
                included new or amended definitions in 310 CMR 7.00, Air Pollution
                Control: Definitions. Specifically, these definitions include: National
                Ambient Air Quality Standards (NAAQS) or Federal Ambient Air Quality
                Standards, PM10 or Particulate Matter 10, PM10
                Emissions, PM2.5 or Particulate Matter 2.5, and
                PM2.5 Emissions. In a final rule dated December 21, 2016 (81
                FR 93627), EPA conditionally approved several Massachusetts
                infrastructure submissions \6\ for section 110(a)(2)(A) because the
                SIP-approved version of 310 CMR 7.00 did not contain a definition for
                ``NAAQS,'' resulting in uncertainty as to which version of the NAAQS
                the term incorporated. However, the definition of ``NAAQS'' added to
                310 CMR 7.00 clarifies that references to NAAQS are to all current
                NAAQS, including the 2012 PM2.5 NAAQS. Therefore, we are
                proposing to approve this definition plus the additional definitions
                given above related to Particulate Matter included in MassDEP's May
                2018 submission. This action will convert the former conditional
                approvals \7\ of this section to a full approval. The new definitions
                also address two earlier conditional approvals of this section for the
                1997 and 2006 PM2.5 NAAQS. 77 FR 63228 (October 16, 2012).
                Therefore, EPA proposes that Massachusetts meets the infrastructure SIP
                requirements of section 110(a)(2)(A) for the 2012 PM2.5
                NAAQS and proposes to convert to full approval conditional approvals of
                this section for the 1997 ozone, 1997 PM2.5, 2006
                PM2.5, 2008 lead, 2008 ozone, 2010 nitrogen dioxide, and
                2010 sulfur dioxide NAAQS.
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                 \6\ The submissions were for the 1997 ozone, 2008 lead, 2008
                ozone, 2010 nitrogen dioxide, and 2010 sulfur dioxide NAAQS.
                 \7\ See supra, note 6.
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                 As previously noted, EPA is not proposing to approve or disapprove
                any existing State provisions or rules related to SSM or director's
                discretion in the context of section 110(a)(2)(A).
                B. Section 110(a)(2)(B)--Ambient Air Quality Monitoring/Data System
                 This section requires SIPs to provide for establishment and
                operation of appropriate devices, methods, systems, and procedures
                necessary to monitor, compile, and analyze ambient air quality data,
                and make such data available to EPA upon request. Each year, States
                submit annual air monitoring network plans to EPA for review and
                approval. EPA's review of these annual monitoring plans includes our
                evaluation of whether the State: (i) Monitors air quality at
                appropriate locations throughout the State using EPA-approved Federal
                Reference Methods or Federal Equivalent Method monitors; (ii) submits
                data to EPA's Air Quality System (AQS) in a timely manner; and (iii)
                provides EPA Regional Offices with prior notification of any planned
                changes to monitoring sites or the network plan. Under MGL c.111,
                Sec. Sec. 142B to 142D, MassDEP operates an air-monitoring network.
                EPA approved Massachusetts' most recent Annual Air Monitoring Network
                Plan (ANP) for PM2.5 on May 9, 2018. This approval excluded
                one monitor in Chelmsford that, under 40 CFR 58.10(a)(iv), was required
                to be operational by January 1, 2015, but was not operating. However,
                this monitor began operating in June 2018, measuring PM2.5,
                ozone, and NO2. In addition to having an adequate air-
                monitoring network, MassDEP populates AQS with air quality monitoring
                data in a timely manner and provides EPA with prior notification when
                considering a change to its monitoring network or plan.
                 EPA proposes that Massachusetts meets the infrastructure SIP
                requirements of section 110(a)(2)(B) for the 2012 PM2.5
                NAAQS.
                C. Section 110(a)(2)(C)--Program for Enforcement of Control Measures
                and for Construction or Modification of Stationary Sources
                 States are required to include a program providing for enforcement
                of all SIP measures and the regulation of construction of new or
                modified stationary sources to meet new source review (NSR)
                requirements under prevention of significant deterioration (PSD) and
                nonattainment new source review (NNSR) programs. Part C of the CAA
                (sections 160-169B) addresses PSD, while part D of the CAA (sections
                171-193) addresses NNSR requirements.
                 The evaluation of each State's submission addressing the
                infrastructure SIP requirements of
                [[Page 5023]]
                section 110(a)(2)(C) covers the following: (i) Enforcement of SIP
                measures; (ii) PSD program for major sources and major modifications;
                and (iii) a permit program for minor sources and minor modifications.
                Sub-Element 1: Enforcement of SIP Measures
                 MassDEP staffs and implements an enforcement program pursuant to
                authorities provided within the following laws: M.G.L. c.111, Sec. 2C,
                Pollution violations; orders of department of environmental protection,
                which authorizes MassDEP to issue orders enforcing pollution control
                regulations generally; M.G.L. c.111, Sec. Sec. 142A through 142O,
                Massachusetts Pollution Control Laws, which, among other things, more
                specifically authorize MassDEP to adopt regulations to control air
                pollution, enforce such regulations, and issue penalties for non-
                compliance; and, M.G.L. c.21A, Sec. 16, Civil Administrative
                Penalties, which provides additional authorizations for MassDEP to
                assess penalties for failure to comply with the Commonwealth's air
                pollution control laws and regulations. Moreover, SIP-approved
                regulations, such as 310 CMR 7.02(12)(e) and (f), provide a program for
                the enforcement of SIP measures. Accordingly, EPA proposes that
                Massachusetts meets the enforcement of SIP measures requirements of
                section 110(a)(2)(C) for the 2012 PM2.5 NAAQS.
                Sub-Element 2: Preconstruction Program for Major Sources and Major
                Modifications
                 Sub-element 2 of section 110(a)(2)(C) requires that States provide
                for the regulation of modification and construction of any stationary
                source as necessary to assure that the NAAQS are achieved, including a
                program to meet PSD and NNSR requirements. PSD applies to new major
                sources or modifications made to major sources for pollutants where the
                area in which the source is located is in attainment of, or
                unclassifiable, regarding the relevant NAAQS, and NNSR requires similar
                actions in nonattainment areas.
                 Massachusetts does not have an approved State PSD program and has
                made no submittals addressing the PSD sub-element of section
                110(a)(2)(C). The Commonwealth has long been subject to a Federal
                Implementation Plan (FIP), however, and has implemented and enforced
                the federal PSD program through a delegation agreement. See 76 FR 31241
                (May 31, 2011). Accordingly, EPA proposes a finding of failure to
                submit with respect to the PSD-related requirements of this sub-element
                for the 2012 PM2.5 NAAQS.\8\ See CAA section 110(c)(1). This
                finding, however, does not trigger any additional FIP obligation by the
                EPA under section 110(c)(1), because the deficiency is addressed by the
                FIP already in place. Moreover, the Commonwealth is not subject to
                mandatory sanctions solely as a result of this finding because the SIP
                submittal deficiencies are neither with respect to a sub-element that
                is required under part D nor in response to a SIP call under section
                110(k)(5) of the Act.
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                 \8\ EPA has previously issued findings of failure to submit
                infrastructure SIPs addressing the PSD-related requirements of
                section 110(a)(2) for the 1997 ozone NAAQS, 73 FR 16205 (March 27,
                2008), the 2008 ozone NAAQS, 78 FR 2882 (January 15, 2013), the 2008
                Pb NAAQS, 78 FR 12961 (February 26, 2013), and the 2010
                NO2 and 2010 SO2 NAAQS, 81 FR 93627 (December
                21, 2016). Massachusetts has made no additional submissions to
                address the PSD-related requirements for these NAAQS since those
                previous findings.
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                Sub-Element 3: Preconstruction Permitting for Minor Sources and Minor
                Modifications
                 To address the pre-construction regulation of the modification and
                construction of minor stationary sources and minor modifications of
                major stationary sources, an infrastructure SIP submission should
                identify the existing EPA-approved SIP provisions and/or include new
                provisions that govern the minor source pre-construction program that
                regulates emissions of the relevant NAAQS pollutants. EPA's most recent
                approval of the Commonwealth's minor NSR program occurred on April 5,
                1995 (60 FR 17226). Since this date, Massachusetts and EPA have relied
                on the existing minor NSR program to ensure that new and modified
                sources not captured by the major NSR permitting programs do not
                interfere with attainment and maintenance of the 2012 PM2.5
                NAAQS.
                 In summary, we are proposing to find that, for the 2012
                PM2.5 NAAQS, Massachusetts meets the enforcement-related
                aspects of Section 110(a)(2)(C) for sub-element 1 and the
                preconstruction permitting requirements for minor sources for sub-
                element 3. However, pursuant to section 110(c)(1), we are proposing to
                find that the Commonwealth has failed to make the required submissions
                related to major source preconstruction permitting (sub-element 2) for
                the 2012 PM2.5 NAAQS.
                D. Section 110(a)(2)(D)--Interstate Transport
                 This section contains a comprehensive set of air quality management
                elements pertaining to the transport of air pollution with which States
                must comply. It covers the following five topics, categorized as sub-
                elements: Sub-element 1, Significant contribution to nonattainment, and
                interference with maintenance of a NAAQS; Sub-element 2, PSD; Sub-
                element 3, Visibility protection; Sub-element 4, Interstate pollution
                abatement; and Sub-element 5, International pollution abatement. Sub-
                elements 1 through 3 above are found under section 110(a)(2)(D)(i) of
                the Act, and these items are further categorized into the four prongs
                discussed below, two of which are found within sub-element 1. Sub-
                elements 4 and 5 are found under section 110(a)(2)(D)(ii) of the Act
                and include provisions insuring compliance with sections 115 and 126 of
                the Act relating to interstate and international pollution abatement.
                Sub-Element 1: Section 110(a)(2)(D)(i)(I)--Contribute to Nonattainment
                (Prong 1) and Interfere With Maintenance of the NAAQS (Prong 2)
                 Section 110(a)(2)(D)(i)(I) of the CAA requires a SIP to prohibit
                any emissions activity in the State that will contribute significantly
                to nonattainment or interfere with maintenance of the NAAQS in any
                downwind State. EPA commonly refers to these requirements as prong 1
                (significant contribution to nonattainment) and prong 2 (interference
                with maintenance), or jointly as the ``Good Neighbor'' or ``transport''
                provisions of the CAA. This rulemaking proposes action on the portion
                of Massachusetts' February 2018 SIP submission that addresses the prong
                1 and 2 requirements with respect to the 2006 and 2012 PM2.5
                NAAQS. On December 26, 2017, EPA issued a finding that Massachusetts
                had failed to submit a SIP addressing the transport provisions
                (including prongs 1 and 2) for the 2012 PM2.5 NAAQS. See 82
                FR 60870. The February 2018 submittal resolves this issue.
                 EPA has developed a consistent framework for addressing the prong 1
                and 2 interstate-transport requirements with respect to the
                PM2.5 NAAQS in several previous federal rulemakings. The
                four basic steps of that framework include: (1) Identifying downwind
                receptors that are expected to have problems attaining or maintaining
                the NAAQS; (2) identifying which upwind States contribute to these
                identified problems in amounts sufficient to warrant further review and
                analysis; (3) for States identified as contributing to downwind air
                quality problems, identifying upwind emissions reductions necessary to
                prevent an upwind State from significantly
                [[Page 5024]]
                contributing to nonattainment or interfering with maintenance of the
                NAAQS downwind; and (4) for States that are found to have emissions
                that significantly contribute to nonattainment or interfere with
                maintenance of the NAAQS downwind, reducing the identified upwind
                emissions through adoption of permanent and enforceable measures. This
                framework was most recently applied with respect to PM2.5 in
                the Cross-State Air Pollution Rule (CSAPR), which addressed both the
                1997 and 2006 PM2.5 standards, as well as the 1997 ozone
                standard. See 76 FR 48208 (August 8, 2011).
                 EPA's analysis for CSAPR, conducted consistent with the four-step
                framework, included air-quality modeling that evaluated the impacts of
                38 eastern States on identified receptors in the eastern United States.
                EPA indicated that, for step 2 of the framework, States with impacts on
                downwind receptors that are below the contribution threshold of 1% of
                the relevant NAAQS would not be considered to significantly contribute
                to nonattainment or interfere with maintenance of the relevant NAAQS,
                and would, therefore, not be included in CSAPR. See 76 FR 48220. EPA
                further indicated that such States could rely on EPA's analysis for
                CSAPR as technical support to demonstrate that their existing or future
                interstate transport SIP submittals are adequate to address the
                transport requirements of 110(a)(2)(D)(i)(I) with regard to the
                relevant NAAQS. Id.
                 In addition, as noted above, on March 17, 2016, EPA released the
                2016 memorandum to provide information to States as they develop SIPs
                addressing the Good Neighbor provision as it pertains to the 2012
                PM2.5 NAAQS. Consistent with step 1 of the framework, the
                2016 memorandum provides projected future-year annual PM2.5
                design values for monitors throughout the country based on quality-
                assured and certified ambient-monitoring data and recent air-quality
                modeling and explains the methodology used to develop these projected
                design values. The memorandum also describes how the projected values
                can be used to help determine which monitors should be further
                evaluated to potentially address if emissions from other States
                significantly contribute to nonattainment or interfere with maintenance
                of the 2012 PM2.5 NAAQS at these monitoring sites. The 2016
                memorandum explained that the pertinent year for evaluating air quality
                for purposes of addressing interstate transport for the 2012
                PM2.5 NAAQS is 2021, the attainment deadline for 2012
                PM2.5 NAAQS nonattainment areas classified as Moderate.
                Accordingly, because the available data included 2017 and 2025
                projected average and maximum PM2.5 design values calculated
                through the CAMx photochemical model, the memorandum suggests
                approaches States might use to interpolate PM2.5 values at
                sites in 2021.
                 For all, but one, monitoring sites in the eastern United States,
                the modeling data provided in the 2016 memorandum showed that monitors
                were expected to both attain and maintain the 2012 PM2.5
                NAAQS in both 2017 and 2025. The modeling results project that this one
                monitor, the Liberty monitor, (ID number 420030064), located in
                Allegheny County, Pennsylvania, will be above the 2012 annual
                PM2.5 NAAQS in 2017, but only under the model's maximum
                projected conditions, which are used in EPA's interstate transport
                framework to identify maintenance receptors. The Liberty monitor (along
                with all the other Allegheny County monitors) is projected to both
                attain and maintain the NAAQS in 2025. The 2016 memorandum suggests
                that under such a condition (again, where EPA's photochemical modeling
                indicates an area will maintain the 2012 annual PM2.5 NAAQS
                in 2025, but not in 2017), further analysis of the site should be
                performed to determine if the site may be a nonattainment or
                maintenance receptor in 2021 (which, again, is the attainment deadline
                for moderate PM2.5 areas). The memorandum also indicates
                that for certain States with incomplete ambient monitoring data,
                additional information including the latest available data, should be
                analyzed to determine whether there are potential downwind air quality
                problems that may be impacted by transported emissions. This rulemaking
                considers these analyses for Massachusetts, as well as additional
                analysis conducted by EPA during review of Massachusetts' submittal.
                 To develop the projected values presented in the memorandum, EPA
                used the results of nationwide photochemical air-quality modeling that
                it recently performed to support several rulemakings related to the
                ozone NAAQS. Base-year modeling was performed for 2011. Future-year
                modeling was performed for 2017 to support the proposed CSAPR Update
                for the 2008 Ozone NAAQS. See 80 FR 75705 (December 3, 2015). Future-
                year modeling was also performed for 2025 to support the Regulatory
                Impact Assessment of the final 2015 Ozone NAAQS.\9\ The outputs from
                these model runs included hourly concentrations of PM2.5
                that were used in conjunction with measured data to project annual
                average PM2.5 design values for 2017 and 2025. Areas that
                were designated as moderate PM2.5 nonattainment areas for
                the 2012 annual PM2.5 NAAQS in 2014 must attain the NAAQS by
                December 31, 2021, or as expeditiously as practicable. Although neither
                the available 2017 nor 2025 future-year modeling data correspond
                directly to the future-year attainment deadline for moderate
                PM2.5 nonattainment areas, EPA believes that the modeling
                information is still helpful for identifying potential nonattainment
                and maintenance receptors in the 2017 through 2021 period. Assessing
                downwind PM2.5 air-quality problems based on estimates of
                air-quality concentrations in a future year aligned with the relevant
                attainment deadline is consistent with the instructions from the United
                States Court of Appeals for the District of Columbia Circuit in North
                Carolina v. EPA, 531 F.3d 896, 911-12 (D.C. Cir. 2008), that upwind
                emission reductions should be harmonized, to the extent possible, with
                the attainment deadlines for downwind areas.
                ---------------------------------------------------------------------------
                 \9\ See 2015 ozone NAAQS RIA at: www3.epa.gov/ttnecas1/docs/20151001ria.pdf.
                ---------------------------------------------------------------------------
                Massachusetts' Submissions for Prongs 1 and 2
                 The submissions addressed herein pertain to the 1997, 2006, and
                2012 PM2.5 NAAQS. Below is a brief history of these NAAQS.
                 On July 18, 1997, EPA promulgated a new NAAQS for PM2.5
                (62 FR 38652). This new NAAQS established a primary (health-based)
                annual standard of 15 micrograms per cubic meter ([mu]g/m\3\) based on
                a 3-year average of annual mean PM2.5 concentrations, and a
                24-hour standard of 65 [mu]g/m\3\ based on a 3-year average of the 98th
                percentile of 24-hour concentrations. On October 17, 2006 (71 FR
                61144), EPA revised the 24-hour PM2.5 NAAQS from 65 [mu]g/
                m\3\ to 35 [mu]g/m\3\ and retained the annual PM2.5 standard
                at a level of 15 [mu]g/m\3\. On January 15, 2013 (78 FR 3086), EPA
                revised the annual PM2.5 NAAQS from 15 [mu]g/m\3\ to 12
                [mu]g/m\3\ and retained the 24-hour PM2.5 standard at a
                level of 35 [mu]g/m\3\.
                 On January 31, 2008, MassDEP submitted an infrastructure SIP for
                the 1997 Ozone NAAQS that included interstate transport provisions
                addressing prongs 1 and 2 with respect to the 1997 PM2.5
                NAAQS (i.e., ``transport SIP''). This transport SIP relied in part on
                EPA's analysis
                [[Page 5025]]
                performed for the Clean Air Interstate Rule (CAIR) rulemaking as well
                as EPA's newer NONROAD model (version 2005a, February 2006) for
                modeling non-road motor vehicles in Massachusetts to conclude that the
                State will not significantly contribute to nonattainment or interfere
                with maintenance of the 1997 PM2.5 NAAQS in any downwind
                area. CAIR was replaced by CSAPR, which is discussed above, as of
                January 1, 2015.
                 On February 9, 2018, MassDEP submitted an infrastructure SIP for
                the 2012 PM2.5 NAAQS that included interstate transport
                provisions addressing prongs 1 and 2 with respect to the 2006 and 2012
                PM2.5 NAAQS. These transport SIPs relied in part on EPA's
                analysis performed for the CSAPR rulemaking to conclude that the State
                will not significantly contribute to nonattainment or interfere with
                maintenance of the 2006 or 2012 PM2.5 NAAQS in any downwind
                area.
                 EPA analyzed Massachusetts' January 2008 and February 2018
                submittals to determine whether they fully addressed the prong 1 and 2
                transport provisions with respect to the 1997, 2006 and 2012
                PM2.5 NAAQS. As discussed below, EPA concludes that
                emissions of PM2.5 and PM2.5 precursors
                (NOX and SO2) in Massachusetts will not
                significantly contribute to nonattainment or interfere with maintenance
                of the 1997, 2006 or 2012 PM2.5 NAAQS in any other State.
                Analysis of Massachusetts' Submissions for the 1997 and 2006
                PM2.5 NAAQS
                 With respect to the 1997 and 2006 PM2.5 NAAQS, EPA's
                analysis in the 2011 CSAPR rulemaking determined that Massachusetts'
                impact to all downwind receptors would be below the 1% contribution
                threshold for both NAAQS for the annual (i.e., 0.15 [mu]g/m\3\) and 24-
                hour standards (i.e., 0.65 [mu]g/m\3\ (1997) and 0.35 [mu]g/m\3\
                (2006)), indicating that the Commonwealth will not significantly
                contribute to nonattainment or interfere with maintenance for the 1997
                or 2006 PM2.5 NAAQS in any downwind State. See 76 FR at
                48240, 48242. As noted above, EPA previously determined that States can
                rely on EPA's CSAPR analysis for the 1997 and 2006 PM2.5
                NAAQS as technical support to demonstrate that their existing or future
                interstate transport SIP submittals are adequate to address the
                transport requirements of 110(a)(2)(D)(i)(I) regarding the relevant
                NAAQS. Accordingly, as EPA's CSAPR analysis concluded that
                Massachusetts will not significantly contribute to nonattainment or
                interfere with maintenance of the 1997 or 2006 PM2.5 NAAQS,
                we propose to approve Massachusetts' January 31, 2008, and February 9,
                2018, SIP submissions for prongs 1 and 2 for the 1997 and 2006
                PM2.5 NAAQS.
                Analysis of Massachusetts' Submission for the 2012 PM2.5
                NAAQS
                 As noted above, the modeling discussed in EPA's 2016 memorandum
                identified one potential maintenance receptor for the 2012
                PM2.5 NAAQS at the Liberty monitor (ID number 420030064),
                located in Allegheny County. The memorandum also identified certain
                States with incomplete ambient monitoring data as areas that may
                require further analysis to determine whether there are potential
                downwind air quality problems that may be impacted by transported
                emissions.
                 While developing the 2011 CSAPR rulemaking, EPA modeled the impacts
                of all 38 eastern States in its modeling domain on fine particulate
                matter concentrations at downwind receptors in other States in the 2012
                analysis year to evaluate the contribution of upwind States on downwind
                States with respect to the 1997 and 2006 PM2.5. Although the
                modeling was not conducted for purposes of analyzing upwind States'
                impacts on downwind receptors with respect to the 2012 PM2.5
                NAAQS, the contribution analysis for the 1997 and 2006 standards can be
                informative for evaluating Massachusetts' compliance with the Good
                Neighbor provision for the 2012 standard.
                 This CSAPR modeling showed that Massachusetts had a very small
                impact (0.008 [mu]g/m\3\) on the Liberty monitor in Allegheny County,
                which is the only out-of-State monitor that may be a nonattainment or
                maintenance receptor in 2021. Although EPA has not proposed a specific
                threshold for evaluating the 2012 PM2.5 NAAQS, EPA notes
                that Massachusetts' impact on the Liberty monitor is far below the
                threshold of 1% for the annual 2012 PM2.5 NAAQS (i.e., 0.12
                [mu]g/m\3\) that EPA previously used to evaluate the contribution of
                upwind States to downwind air-quality monitors. (A spreadsheet showing
                CSAPR contributions for ozone and PM2.5 is included in
                docket EPA-HQ-OAR-2009-0491-4228.) Therefore, even if the Liberty
                monitor were considered a receptor for purposes of transport, the EPA
                proposes to conclude that Massachusetts will not significantly
                contribute to nonattainment, or interfere with maintenance, of the 2012
                PM2.5 NAAQS at that monitor.
                 In addition, the Liberty monitor is already close to attaining the
                2012 PM2.5 NAAQS and expected emissions reductions in the
                next four years will lead to additional reductions in measured
                PM2.5 concentrations. There are both local and regional
                components to measured PM2.5 levels. All monitors in
                Allegheny County have a regional component, with the Liberty monitor
                most strongly influenced by local sources. This is confirmed by the
                fact that annual average measured concentrations at the Liberty monitor
                have consistently been 2-4 [mu]g/m\3\ higher than other monitors in
                Allegheny County.
                 Specifically, previous CSAPR modeling showed that regional
                emissions from upwind States, particularly SO2 and
                NOX emissions, contribute to PM2.5 nonattainment
                at the Liberty monitor. In recent years, large SO2 and
                NOX reductions from power plants have occurred in
                Pennsylvania and States upwind from the Greater Pittsburgh region.
                Pennsylvania's energy sector emissions of SO2 will have
                decreased 166,000 tons between 2015 and 2017 because of CSAPR
                implementation. This is due to both the installation of emissions
                controls and retirements of electric generating units (EGUs). Projected
                power plant closures and additional emissions controls in Pennsylvania
                and upwind States will help further reduce both direct PM2.5
                and PM2.5 precursors. Regional emission reductions will
                continue to occur from current on-the-books Federal and State
                regulations such as the federal on-road and non-road vehicle programs,
                and various rules for major stationary emissions sources. See proposed
                and final approval of the Ohio Infrastructure SIP for the 2012
                PM2.5 NAAQS on December 7, 2017 (82 FR 57689) and on
                February 2, 2018 (83 FR 4845), respectively.
                 In addition to regional emissions reductions and plant closures,
                additional local reductions to both direct PM2.5 and
                SO2 emissions are expected to occur and should contribute to
                further declines in Allegheny County's PM2.5 monitor
                concentrations. For example, significant SO2 reductions have
                recently occurred at US Steel's integrated steel mill facilities in
                southern Allegheny County as part of a 1-hr SO2 NAAQS
                SIP.\10\ Reductions are largely due to declining sulfur content in the
                Clairton Coke Work's coke oven gas (COG). Because this COG is burned at
                US Steel's Clairton Coke Works, Irvin Mill, and Edgar Thompson Steel
                Mill, these reductions in sulfur content should contribute to much
                lower PM2.5 precursor emissions in the immediate
                [[Page 5026]]
                future. The Allegheny SO2 SIP also projects lower
                SO2 emissions resulting from vehicle fuel standards,
                reductions in general emissions due to declining population in the
                Greater Pittsburgh region, and several shutdowns of significant sources
                of emissions in Allegheny County.
                ---------------------------------------------------------------------------
                 \10\ www.achd.net/air/pubs/SIPs/SO2_2010_NAAQS_SIP_9-14-2017.pdf.
                ---------------------------------------------------------------------------
                 EPA modeling projections, the recent downward trend in local and
                upwind emissions reductions, the expected continued downward trend in
                emissions between 2017 and 2021, and the downward trend in monitored
                PM2.5 concentrations all indicate that the Liberty monitor
                will attain and be able to maintain the 2012 annual PM2.5
                NAAQS by 2021. See proposed approval and final approval of the Ohio
                Infrastructure SIP, December 7, 2017 (82 FR 57689) and February 2, 2018
                (83 FR 4845).
                 As noted in the 2016 memorandum, several States have had recent
                data-quality issues identified as part of the PM2.5
                designations process. In particular, some ambient PM2.5 data
                for some periods between 2009 and 2013 in Florida, Illinois, Idaho,
                Tennessee, and Kentucky did not meet all data-quality requirements
                under 40 CFR part 50, appendix L. The lack of data means that the
                relevant areas in those States could potentially be in nonattainment or
                be maintenance receptors in 2021. However, as mentioned above, EPA's
                analysis for the 2011 CSAPR rulemaking with respect to the 2006
                PM2.5 NAAQS determined that Massachusetts' impact to all
                these downwind receptors would be well below the 1% contribution
                threshold for this NAAQS. That conclusion informs the analysis of
                Massachusetts' contributions for purposes of the 2012 PM2.5
                NAAQS as well. Given this, and the fact, discussed below, that the
                Commonwealth's PM2.5 design values for all ambient monitors
                have declined since the 2005-2007 period, EPA concludes that it is
                highly unlikely that Massachusetts significantly contributes to
                nonattainment or interferes with maintenance of the 2012
                PM2.5 NAAQS in areas with data-quality issues.\11\
                ---------------------------------------------------------------------------
                 \11\ Massachusetts' PM2.5 design values for all
                ambient monitors are available in the Design Value Reports at
                https://19january2017snapshot.epa.gov/air-trends/air-quality-design-values_.html.
                ---------------------------------------------------------------------------
                 Information in Massachusetts' February 2018 SIP submission
                corroborates EPA's proposed conclusion that Massachusetts' SIP meets
                its Good Neighbor obligations. The State's technical analysis in that
                submission includes graphs showing downward trends in the maximum 24-
                hour and annual PM2.5 design values for all six New England
                States and New York since 2007. It also includes results of EPA's CSAPR
                and CSAPR update modeling. This technical analysis is supported by
                additional indications that the State's air quality is improving and
                that emissions are falling, including certified 24-hour and annual
                PM2.5 monitor values recorded through 2017 and preliminary
                2018 results.\12\ Specifically, since 1999, the highest value
                satisfying minimum data completion criteria for the 24-hour
                PM2.5 standard was 48 [mu]g/m\3\ in Pittsfield in Berkshire
                County (1999) and in Lynn in Essex County (2003). The highest value
                satisfying minimum data completion criteria for the annual
                PM2.5 standard was 15.3 [mu]g/m\3\ in Boston in Suffolk
                County (1999). However, since 2008, all monitors in the Commonwealth
                have been below the 2012 PM2.5 NAAQS.
                ---------------------------------------------------------------------------
                 \12\ 24-hour and annual PM2.5 monitor values for
                individual monitoring sites throughout Massachusetts are available
                at https://www.epa.gov/outdoor-air-quality-data/monitor-values-report.
                ---------------------------------------------------------------------------
                 In addition, as reported in EPA's Clean Air Markets Program
                database, actual ozone-season NOX emissions from EGUs in
                Massachusetts from 2009 through 2017 fell from 2,403.5 to 878.5 tons,
                almost one-third of what it was.
                 Second, Massachusetts' sources are well-controlled. Massachusetts'
                2018 submission indicates that the Commonwealth has many SIP-approved
                regulations and programs that limit emissions of PM2.5 and
                the PM2.5 precursors SO2 and NOX.\13\
                Among others, these regulations include 310 CMR 7.06, Visible Emissions
                (37 FR 23085; October 28, 1972); 7.07, Open Burning (45 FR 40987; June
                17, 1980); 7.08, Incinerators (64 FR 48095; September 2, 1999); 7.09,
                Dust, Odor, Construction and Demolition (81 FR 47708; July 22, 2016);
                7.19, Reasonably Available Control Technology (RACT) for Sources of
                Oxides of Nitrogen (NOX) (80 FR 61101; October 9, 2015); and 7.29,
                Emission Standards for Power Plants (78 FR 57487; September 19, 22013).
                ---------------------------------------------------------------------------
                \13\ SO2 and NOX contribute to the
                formation of PM2.5.
                ---------------------------------------------------------------------------
                 It should also be noted that Massachusetts is not in the CSAPR
                program because EPA analyses show that the State does not emit ozone-
                season NOX at a level that contributes significantly to non-
                attainment or interferes with maintenance of the 1997 and 2006
                PM2.5 NAAQS in any other State.
                 For the reasons explained herein, EPA agrees with Massachusetts'
                conclusions and proposes to determine that Massachusetts will not
                significantly contribute to nonattainment or interfere with maintenance
                of the 2006 or 2012 PM2.5 NAAQS in any other State.
                Therefore, EPA proposes to approve the February 2018 infrastructure SIP
                submission from Massachusetts for prongs 1 and 2 of CAA section
                110(a)(2)(D)(i)(I) for the 2006 and 2012 PM2.5 NAAQS.
                Sub-Element 2: Section 110(a)(2)(D)(i)(II)--PSD (Prong 3)
                 To prevent significant deterioration of air quality, this sub-
                element requires SIPs to include provisions that prohibit any source or
                other type of emissions activity in one State from interfering with
                measures that are required in any other State's SIP under Part C of the
                CAA. One way for a State to meet this requirement, specifically with
                respect to in-State sources and pollutants that are subject to PSD
                permitting, is through a comprehensive PSD permitting program that
                applies to all regulated NSR pollutants and that satisfies the
                requirements of EPA's PSD implementation rules. For in-State sources
                not subject to PSD, this requirement can be satisfied through a fully-
                approved nonattainment new source review (NNSR) program with respect to
                any previous NAAQS.
                 On December 26, 2017, EPA issued a finding that Massachusetts had
                failed to submit a SIP addressing the transport provisions (including
                prong 3) for the 2012 PM2.5 NAAQS. See 82 FR 60870. As
                discussed under element C above, Massachusetts has long been subject to
                a PSD FIP and has implemented and enforced the federal PSD program
                through a delegation agreement with EPA. MassDEP's February 2018
                submittal does not address the PSD-related aspect of prong 3.
                Therefore, EPA's December 26, 2017, finding of failure to submit
                remains with respect to the PSD requirement of prong 3 of
                110(a)(2)(D)(i)(II) for the 2012 PM2.5 NAAQS but does not
                trigger any sanctions or additional FIP obligation for the same reasons
                discussed under element C above.
                 Under prong 3 of 110(a)(2)(D)(i)(II), EPA also reviews the
                potential for in-State sources not subject to PSD to interfere with PSD
                in an attainment or unclassifiable area of another State. EPA generally
                considers a fully approved NNSR program adequate for purposes of
                meeting this requirement of prong 3 with respect to in-state sources
                and pollutants not subject to PSD. See 2013 memorandum. EPA last
                approved the Commonwealth's NNSR program on October 27, 2000. 65 FR
                64360. Because Massachusetts is located within the Ozone Transport
                Region (OTR), see
                [[Page 5027]]
                CAA section 184(a), 42 U.S.C. 7511c(a), the CAA requires sources
                emitting 100 tons per year (tpy) or more of nitrogen oxides
                (NOX) or 50 tpy or more of volatile organic compounds (VOCs)
                located in attainment or unclassifiable areas to be subject to the
                requirements that would be applicable to major stationary sources if
                the area were classified as a moderate nonattainment area. See CAA
                sections 182(f)(1), 184(b)(2), 42 U.S.C. 7511a, 7511c.
                 In other words, even if located in an area designated attainment or
                unclassifiable for ozone, under the CAA and its implementing
                regulations, such sources are subject to NNSR rather than PSD. The
                major source threshold for NNSR in Massachusetts is currently 50 tpy
                for NOX instead of 100 tpy due to the fact that part of
                Massachusetts had been designated in 1990 as a serious nonattainment
                area for the 1979 1-hour ozone standard.\14\ \15\ Massachusetts's
                current SIP-approved NNSR regulations, however, apply by their terms
                only to nonattainment areas,\16\ meaning that sources with 50 tpy (see
                footnote 15) or more of VOCs or NOX emissions in much of
                Massachusetts are not covered by either the PSD FIP, applicable in the
                Commonwealth, or the Commonwealth's EPA-approved NNSR program. Thus,
                the Commonwealth has not shown that it has met this requirement of
                prong 3. However, as a matter of state regulation, the Commonwealth has
                promulgated and implements NNSR regulations that make the
                Commonwealth's NNSR program applicable to such sources regardless of
                area designation.
                ---------------------------------------------------------------------------
                 \14\ On November 6, 1991, the EPA promulgated designations for
                the 1979 1-hour ozone standard. See 56 FR 56694 (November 6, 1991).
                 \15\ Because Massachusetts is in the OTR, the major source
                threshold for VOCs is 50 tpy.
                 \16\ At the time EPA last approved Massachusetts' NNSR
                regulations (October 27, 2000; 65 FR 64361), the Western
                Massachusetts area was nonattainment for the one-hour ozone
                standard, and the Eastern Massachusetts area was attaining the
                standard, but was anticipated to become nonattainment as of January
                16, 2001, upon EPA's reinstatement of the one-hour ozone NAAQS for
                that area.
                ---------------------------------------------------------------------------
                 On February 9, 2018, Massachusetts submitted a separate SIP
                revision to make its EPA-approved NSSR program applicable to such
                sources. EPA is proposing approval of those provisions in a separate
                rulemaking, and will take final action on that submittal prior to, or
                in conjunction with, finalizing our action on MassDEP's infrastructure
                SIP submittal for the 2012 PM2.5 NAAQS. Accordingly, we
                propose to approve Massachusetts' submittals for the 2012
                PM2.5 NAAQS for the NNSR aspect of prong 3.
                Sub-Element 3: Section 110(a)(2)(D)(i)(II)--Visibility Protection
                (Prong 4)
                 Regarding the applicable requirements for visibility protection of
                section 110(a)(2)(D)(i)(II), States are subject to visibility and
                regional haze program requirements under part C of the CAA (which
                includes sections 169A and 169B). The 2009, 2011, and 2013 memoranda
                explain that these requirements can be satisfied by an approved SIP
                addressing reasonably attributable visibility impairment, if required,
                or an approved SIP addressing regional haze. A fully approved regional
                haze SIP meeting the requirements of 40 CFR 51.308 will ensure that
                emissions from sources under an air agency's jurisdiction are not
                interfering with measures required to be included in other air
                agencies' plans to protect visibility.
                 On December 26, 2017, EPA issued a finding that Massachusetts had
                failed to submit a SIP addressing the transport provisions (including
                prong 4) for the 2012 PM2.5 NAAQS. See 82 FR 60870.
                MassDEP's February 2018 submittal resolves this issue, addressing prong
                4 by citing to Massachusetts' Regional Haze SIP, which EPA approved on
                September 19, 2013. This Regional Haze SIP, which was submitted in
                December 2011, with two supplemental submittals in August 2012, meets
                the requirements of 40 CFR 51.308. See 78 FR 57487. Accordingly, EPA
                proposes that Massachusetts meets the visibility protection
                requirements of 110(a)(2)(D)(i)(II) for the 2012 PM2.5
                NAAQS. Additionally, in its infrastructure submission for the 2006
                PM2.5 NAAQS, MassDEP stated that it would rely on its
                Regional Haze SIP for this requirement. As noted above, EPA approved
                the Regional Haze SIP in 2013. Accordingly, EPA proposes that
                Massachusetts meets the visibility protection requirements of
                110(a)(2)(D)(i)(II) for the 2006 PM2.5 NAAQS.
                Sub-Element 4: Section 110(a)(2)(D)(ii)--Interstate Pollution Abatement
                 This sub-element requires that each SIP contain provisions
                requiring compliance with requirements of section 126 relating to
                interstate pollution abatement. Section 126(a) requires new or modified
                sources to notify neighboring States of potential impacts from the
                source. The statute does not specify the method by which the source
                should provide the notification. States with SIP-approved PSD programs
                must have a provision requiring such notification by new or modified
                sources.
                 As mentioned elsewhere in this document, Massachusetts is currently
                subject to a PSD FIP. In addition, Massachusetts states in its
                submittal that it relies on the PSD FIP to meet the notice requirement
                of section 126(a). Therefore, we propose to make a finding of failure
                to submit for section 110(a)(2)(D)(ii) regarding PSD-related notice of
                interstate pollution with respect to the 2012 PM2.5
                NAAQS.\17\ This finding does not trigger any additional FIP obligation
                by the EPA under section 110(c)(1), because the federal PSD rules
                address the notification issue. See 40 CFR 52.21(q), 124.10(c)(vii);
                see also id. section 52.1165. Nor does the finding trigger any
                sanctions. Massachusetts has no obligations under any other provision
                of section 126.
                ---------------------------------------------------------------------------
                 \17\ As discussed earlier, supra n.6, EPA has previously issued
                findings of failure to submit for Massachusetts for the PSD-related
                requirements of 110(a)(2)(D)(ii) for the 1997 ozone, 2008 ozone,
                2008 Pb, 2010 NO2 and 2010 SO2 NAAQS.
                ---------------------------------------------------------------------------
                Sub-Element 5: Section 110(a)(2)(D)(ii)--International Pollution
                Abatement
                 This sub-element also requires each SIP to contain provisions
                requiring compliance with the applicable requirements of section 115
                relating to international pollution abatement. Section 115 authorizes
                the Administrator to require a state to revise its SIP to alleviate
                international transport into another country where the Administrator
                has made a finding with respect to emissions of the particular NAAQS
                pollutant and its precursors, if applicable. There are no final
                findings under section 115 against Massachusetts for the 1997, 2006, or
                2012 PM2.5 NAAQS. Therefore, EPA proposes that Massachusetts
                meets the applicable infrastructure SIP requirements of section
                110(a)(2)(D)(ii) related to section 115 of the CAA (international
                pollution abatement) for the 1997, 2006, and 2012 PM2.5
                NAAQS.
                E. Section 110(a)(2)(E)--Adequate Resources
                 Section 110(a)(2)(E)(i) requires each SIP to provide assurances
                that the State will have adequate personnel, funding, and legal
                authority under State law to carry out its SIP. In addition, section
                110(a)(2)(E)(ii) requires each State to comply with the requirements
                under CAA section 128 about State boards. Finally, section
                110(a)(2)(E)(iii) requires that, where a State relies upon local or
                regional governments or agencies for the implementation of its SIP
                provisions,
                [[Page 5028]]
                the State retain responsibility for ensuring implementation of SIP
                obligations with respect to relevant NAAQS. Section 110(a)(2)(E)(iii),
                however, does not apply to this action because Massachusetts does not
                rely upon local or regional governments or agencies for the
                implementation of its SIP provisions.
                Sub-Element 1: Adequate Personnel, Funding, and Legal Authority Under
                State Law To Carry Out Its SIP, and Related Issues
                 Massachusetts, through its infrastructure SIP submittal, has
                documented that its air agency has the requisite authority and
                resources to carry out its SIP obligations. Massachusetts General Laws
                c. 111, Sec. Sec. 142A to 142N, provide MassDEP with the authority to
                carry out the State's implementation plan. The Massachusetts SIP, as
                originally submitted in 1971 and subsequently amended, provides
                descriptions of the staffing and funding necessary to carry out the
                plan. In the submittals, MassDEP provides assurances that it has
                adequate personnel and funding to carry out the SIP during the five
                years following infrastructure SIP submission and in future years.
                Additionally, the Commonwealth receives CAA section 103 and 105 grant
                funds through Performance Partnership agreements and provides State
                matching funds, which together enable Massachusetts to carry out its
                SIP requirements. Therefore, EPA proposes that Massachusetts meets the
                infrastructure SIP requirements of this portion of section 110(a)(2)(E)
                for the 2012 PM2.5 NAAQS.
                Sub-Element 2: State Board Requirements Under Section 128 of the CAA
                 Section 110(a)(2)(E)(ii) requires each SIP to contain provisions
                that comply with the State board requirements of section 128 of the
                CAA. That provision contains two explicit requirements: (1) That any
                board or body which approves permits or enforcement orders under this
                chapter shall have at least a majority of members who represent the
                public interest and do not derive any significant portion of their
                income from persons subject to permits and enforcement orders under
                this chapter, and (2) that any potential conflicts of interest by
                members of such board or body or the head of an executive agency with
                similar powers be adequately disclosed.
                 Massachusetts does not have a State board that approves permits or
                enforcement orders under the CAA. Instead, permits and enforcement
                orders are approved by the Commissioner of MassDEP. Thus, Massachusetts
                is not subject to the requirements of paragraph (a)(1) of section 128.
                As to the conflict of interest provisions of section 128(a)(2),
                Massachusetts cited M.G.L. c. 268A, Sec. Sec. 6 and 6A of the
                Commonwealth's Conflict of Interest law in its February 2018
                infrastructure SIP submittal for 2012 PM2.5 NAAQS.
                 Pursuant to these State provisions, which were approved into the
                Massachusetts SIP on December 21, 2016, 81 FR 93627, State employees in
                Massachusetts, including the head of an executive agency with authority
                to approve air permits or enforcement orders, are required to disclose
                potential conflicts of interest to, among others, the State ethics
                commission. Therefore, we propose to approve the Commonwealth's
                infrastructure SIP submittal for section 110(a)(2)(E)(ii) for the 2012
                PM2.5 NAAQS. In addition, we propose to convert to full
                approval two conditional approvals we previously issued for
                Massachusetts with respect to section 110(a)(2)(E)(ii) for the 1997 and
                2006 PM2.5 NAAQS. See 77 FR 63228 (October 16, 2012).
                F. Section 110(a)(2)(F)--Stationary Source Monitoring System
                 States must establish a system to monitor emissions from stationary
                sources and submit periodic emissions reports. Each plan shall also
                require the installation, maintenance, and replacement of equipment,
                and the implementation of other necessary steps, by owners or operators
                of stationary sources to monitor emissions from such sources. The State
                plan shall also require periodic reports on the nature and amounts of
                emissions and emissions-related data from such sources, and correlation
                of such reports by each State agency with any emission limitations or
                standards. Lastly, the reports shall be available at reasonable times
                for public inspection.
                 Pursuant to M.G.L. c. 111, Sec. Sec. 142A to 142D, MassDEP has the
                necessary authority to maintain and operate air monitoring stations,
                and coordinates with EPA in determining the types and locations of
                ambient air monitors across the State. The Commonwealth uses this
                authority to require the installation, maintenance, and replacement of
                emissions monitoring equipment by, and to collect information on air
                emissions from, sources in the State. The following SIP-approved
                regulations enable the accomplishment of the Commonwealth's emissions
                recording, reporting, and correlating objectives:
                1. 310 CMR 7.12, Source Registration.
                2. 310 CMR 7.13, Stack Testing.
                3. 310 CMR 7.14, Monitoring Devices and Reports.
                 Additionally, Massachusetts statutes and regulations provide that
                emissions data shall be available for public inspection. See, e.g.,
                M.G.L. c. 21I, Sec. 20(K); M.G.L. c. 111, Sec. 142B; 310 CMR
                Sec. Sec. 3.33(5), 7.12(4)(b); 7.14(1).
                 EPA recognizes that Massachusetts routinely collects information on
                air emissions from its industrial sources and makes this information
                available to the public. EPA, therefore, proposes that the Commonwealth
                meets the infrastructure SIP requirements of section 110(a)(2)(F) for
                the 2012 PM2.5 NAAQS.
                G. Section 110(a)(2)(G)--Emergency Powers
                 This section requires that a plan provide for State authority
                analogous to that provided to the EPA Administrator in section 303 of
                the CAA, and adequate contingency plans to implement such authority.
                Section 303 of the CAA provides authority to the EPA Administrator to
                seek a court order to restrain any source from causing or contributing
                to emissions that present an ``imminent and substantial endangerment to
                public health or welfare, or the environment.'' Section 303 further
                authorizes the Administrator to issue ``such orders as may be necessary
                to protect public health or welfare or the environment'' in
                circumstances in which ``it is not practicable to assure prompt
                protection . . . by commencement of such civil action.''
                 We propose to find that the Commonwealth's infrastructure SIP
                submittal demonstrates that certain State statutes and regulations
                provide for authority comparable to that in section 303. Massachusetts'
                submittal cites M.G.L. c. 111, Sec. 2B, Air Pollution Emergencies,
                which authorizes the Commissioner of the MassDEP to ``declare an air
                pollution emergency'' if the Commissioner ``determines that the
                condition or impending condition of the atmosphere in the Commonwealth
                . . . constitutes a present or reasonably imminent danger to health.''
                During such an air pollution emergency, the Commissioner is authorized
                pursuant to section 2B, to ``take whatever action is necessary to
                maintain and protect the public health, including but not limited to .
                . . prohibiting, restricting and conditioning emissions of dangerous or
                potentially dangerous air contaminants from whatever source derived . .
                . .'' Additionally, sections 2B and 2C
                [[Page 5029]]
                authorize the Commissioner to issue emergency orders.
                 Moreover, M.G.L. c. 21A, Sec. 8 provides that, ``[i]n regulating .
                . . any pollution prevention, control or abatement plan [or] strategy .
                . . through any . . . departmental action affecting or prohibiting the
                emission . . . of any hazardous substance to the environment . . . the
                department may consider the potential effects of such plans [and]
                strategies . . . on public health and safety and the environment . . .
                and said department shall act to minimize and prevent damage or threat
                of damage to the environment.''
                 These duties are implemented, in part, under MassDEP regulations at
                310 CMR 8.00, Prevention and Abatement of Air Pollution Episodes and
                Air Pollution Incident Emergencies, which EPA approved into the SIP on
                October 4, 2002 (67 FR 62184). These regulations establish levels that
                would constitute significant harm or imminent and substantial
                endangerment to health for ambient concentrations of pollutants subject
                to a NAAQS, consistent with the significant harm levels and procedures
                for State emergency episode plans established by EPA in 40 CFR 51.150
                and 51.151.\18\ Finally, M.G.L. c. 111, Sec. 2B authorizes the State
                to seek injunctive relief in the superior court for violation of an
                emergency order issued by the MassDEP Commissioner. While no single
                Massachusetts statute or regulation mirrors the authorities of CAA
                section 303, we propose to find that the combination of State statutes
                and regulations discussed herein provide for comparable authority to
                immediately bring suit to restrain, and issue orders against, any
                person causing or contributing to air pollution that presents an
                imminent and substantial endangerment to public health or welfare, or
                the environment.
                ---------------------------------------------------------------------------
                 \18\ The Commonwealth's Contaminant Concentration Levels are
                found in Table 1 of 310 CMR 8.01, and match EPA's levels from 40 CFR
                51.151 except for the averaging time used for ozone. Massachusetts
                uses a 1-hour averaging time, which is slightly more protective that
                the 2-hour averaging time EPA provides for this pollutant.
                ---------------------------------------------------------------------------
                 Section 110(a)(2)(G) also requires that States have an approved
                contingency plan (also known as an emergency episode plan) to implement
                the air agency's emergency episode authority for any Air Quality
                Control Region (AQCR) within the State that is classified as Priority
                I, IA, or II for certain pollutants. See 40 CFR 51.152(c). For
                classifications for Massachusetts, see 40 CFR 52.1121. A contingency
                plan is not required if the entire State is classified as Priority III
                for a particular pollutant. Id. In general, contingency plans for
                Priority I, IA, and II areas must meet the applicable requirements of
                40 CFR part 51, subpart H (40 CFR 51.150 through 51.153) (Prevention of
                Air Pollution Emergency Episodes) for the relevant NAAQS, if the NAAQS
                is covered by those regulations. In the case of PM2.5, EPA
                has not promulgated regulations that provide the ambient levels to
                classify different priority levels for the 2012 standard (or any
                PM2.5 NAAQS). For the 2006 PM2.5 NAAQS, EPA's
                2009 memorandum recommends that States develop emergency episode plans
                for any area that has monitored and recorded 24-hour PM2.5
                levels greater than 140 [mu]g/m\3\ since 2006. EPA's review of
                Massachusetts' certified air quality data in AQS indicates that the
                highest 24-hour PM2.5 level recorded since 2006 was 72.7
                [mu]g/m\3\, which occurred in 2012 in Boston in Suffolk County (Site ID
                250250042).\19\ Therefore, EPA proposes that a specific contingency
                plan from Massachusetts for PM2.5 is not necessary.
                Furthermore, although not expected, if PM2.5 conditions in
                Massachusetts were to change, MassDEP has general authority to order a
                source to reduce or discontinue air pollution as required to protect
                the public health or safety or the environment, as discussed earlier.
                ---------------------------------------------------------------------------
                 \19\ 24-hour and annual PM2.5 monitor values for
                individual monitoring sites throughout Massachusetts are available
                at www.epa.gov/outdoor-air-quality-data/monitor-values-report.
                ---------------------------------------------------------------------------
                 In addition, as a matter of practice, Massachusetts forecasts
                concentrations of PM2.5 throughout the year and issues
                alerts to the public through the EPA AirNow and EPA Enviroflash
                systems. Information regarding these two systems is available on EPA's
                website at www.airnow.gov. When levels are forecast to exceed the 24-
                hour PM2.5 standard in Massachusetts, notices are sent out
                to Enviroflash participants, the media are alerted via a press release,
                and the National Weather Service (NWS) is alerted to issue an Air
                Quality Advisory through the normal NWS weather alert system. These
                actions are similar to the notification and communication requirements
                for contingency plans in 40 CFR 51.152.
                 Therefore, EPA proposes that Massachusetts, through the combination
                of statutes and regulations discussed above and participation in EPA's
                AirNow program, meets the applicable infrastructure SIP requirements of
                section 110(a)(2)(G) for the 2012 PM2.5 NAAQS.
                H. Section 110(a)(2)(H)--Future SIP Revisions
                 This section requires that a State's SIP provide for revision in
                response to: Changes in the NAAQS, availability of improved methods for
                attaining the NAAQS, or an EPA finding that the SIP is substantially
                inadequate.
                 Massachusetts General Laws c. 111, Sec. 142D provides in relevant
                part that, ``From time to time the department shall review the ambient
                air quality standards and plans for implementation, maintenance and
                attainment of such standards adopted pursuant to this section and,
                after public hearings, shall amend such standards and implementation
                plan so as to minimize the economic cost of such standards and plan for
                implementation, provided, however, that such standards shall not be
                less than the minimum federal standards.'' This authorizing statute
                gives MassDEP the power to revise the Massachusetts SIP from time to
                time as may be necessary to take account of changes in the NAAQS or
                availability of improved methods for attaining the NAAQS and whenever
                the EPA finds that the SIP is substantially inadequate.
                 EPA proposes that Massachusetts meets the infrastructure SIP
                requirements of CAA section 110(a)(2)(H) for the 2012 PM2.5
                NAAQS.
                I. Section 110(a)(2)(I)--Nonattainment Area Plan or Plan Revisions
                Under Part D
                 The CAA requires that each plan or plan revision for an area
                designated as a nonattainment area meet the applicable requirements of
                part D of the CAA. Part D relates to nonattainment areas. EPA has
                determined that section 110(a)(2)(I) is not applicable to the
                infrastructure SIP process. Instead, EPA takes action on part D
                attainment plans through separate processes.
                J. Section 110(a)(2)(J)--Consultation With Government Officials; Public
                Notifications; Prevention of Significant Deterioration; Visibility
                Protection
                 Section 110(a)(2)(J) of the CAA requires that each SIP ``meet the
                applicable requirements of section 121 of this title (relating to
                consultation), section 127 of this title (relating to public
                notification), and part C of this subchapter (relating to PSD of air
                quality and visibility protection).'' The evaluation of the submission
                from Massachusetts with respect to these requirements is described
                below.
                Sub-Element 1: Consultation With Government Officials
                 Pursuant to CAA section 121, a State must provide a satisfactory
                process for
                [[Page 5030]]
                consultation with local governments and Federal Land Managers (FLMs) in
                carrying out its NAAQS implementation requirements.
                 Pursuant to EPA-approved Massachusetts regulations at 310 CMR
                7.02(12)(g)(2), MassDEP notifies the public ``by advertisement in a
                newspaper having wide circulation'' in the area of the particular
                facility of the opportunity to comment on certain proposed permitting
                actions and sends ``a copy of the notice of public comment to the
                applicant, the EPA, and officials and agencies having jurisdiction over
                the community in which the facility is located, including local air
                pollution control agencies, chief executives of said community, and any
                regional land use planning agency.'' In addition, MassDEP included
                Massachusetts Executive Order 145, ``Consultation with Cities & Towns
                on Administrative Mandates,'' which establishes a process for state
                agencies to consult with local governments, in its February 2018
                infrastructure SIP submittal for EPA approval. We propose to approve
                this Executive Order into the Massachusetts SIP.
                 Massachusetts did not make a submittal, however, with respect to
                the requirement to consult with FLMs. As previously mentioned,
                Massachusetts does not have an approved State PSD program, but rather
                is subject to a PSD FIP. The FIP includes a provision requiring
                consultation with FLMs. See 40 CFR 52.21(p). Consequently, with respect
                to the 2012 PM2.5 NAAQS, EPA proposes that Massachusetts
                meets the consultation with local governments requirement of this
                portion of section 110(a)(2)(J), but proposes a finding of failure to
                submit with respect to the FLM consultation requirement. Because the
                federal PSD program, which Massachusetts implements and enforces,
                addresses the FLM consultation requirement, a finding of failure to
                submit will not result in sanctions or new FIP obligations.
                Sub-Element 2: Public Notification
                 Pursuant to CAA section 127, States must notify the public if NAAQS
                are exceeded in an area, advise the public of health hazards associated
                with exceedances, and enhance public awareness of measures that can be
                taken to prevent exceedances and of ways in which the public can
                participate in regulatory and other efforts to improve air quality.
                 Massachusetts regulations specify criteria for air pollution
                episodes and incidents and provide for notice to the public via news
                media and other means of communication. See 310 CMR 8.00. The
                Commonwealth also provides a daily air quality forecast to inform the
                public about concentrations of fine particles and, during the ozone
                season, provides similar information for ozone. Real time air quality
                data for NAAQS pollutants are also available on the MassDEP's website,
                as are information about health hazards associated with NAAQS
                pollutants and ways in which the public can participate in regulatory
                efforts related to air quality. The Commonwealth is also an active
                partner in EPA's AirNow and EnviroFlash air quality alert programs,
                which notify the public of air quality levels through EPA's website,
                alerts, and press releases. Therefore, we propose to find that
                Massachusetts meets the infrastructure SIP requirements of this portion
                of section 110(a)(2)(J) for the 2012 PM2.5 NAAQS.
                Sub-Element 3: PSD
                 States must meet applicable requirements of section 110(a)(2)(C)
                related to PSD. The Commonwealth's PSD program in the context of
                infrastructure SIPs has already been discussed in the paragraphs
                addressing sections 110(a)(2)(C), 110(a)(2)(D)(i)(II), and
                110(a)(2)(D)(ii), and our proposed actions for those sections are
                consistent with the proposed actions for this portion of section
                110(a)(2)(J). Specifically, we propose a finding of failure to submit
                with respect to the PSD sub-element of section 110(a)(2)(J) for the
                2012 PM2.5 NAAQS,\20\ and note that such a finding will not
                result in any sanctions or new FIP obligations.
                ---------------------------------------------------------------------------
                 \20\ As discussed earlier, supra n.6, EPA has previously issued
                findings of failure to submit for Massachusetts for PSD-related
                infrastructure requirements for the 1997 ozone, 2008 ozone, 2008
                Lead, 2010 NO2 and 2010 SO2 NAAQS.
                ---------------------------------------------------------------------------
                Sub-Element 4: Visibility Protection
                 Regarding visibility protection, States are subject to visibility
                and regional haze program requirements under part C of the CAA (which
                includes sections 169A and 169B). In the event of the establishment of
                a new NAAQS, however, the visibility and regional haze program
                requirements under part C do not change. Thus, as noted in EPA's 2013
                memorandum, we find that there is no new visibility obligation
                ``triggered'' under section 110(a)(2)(J) when a new NAAQS becomes
                effective. In other words, the visibility protection requirements of
                section 110(a)(2)(J) are not germane to infrastructure SIPs for the
                2012 PM2.5 NAAQS.
                K. Section 110(a)(2)(K)--Air Quality Modeling/Data
                 Section 110(a)(2)(K) of the Act requires that a SIP provide for the
                performance of such air-quality modeling as the EPA Administrator may
                prescribe to predict the effect on ambient air quality of any emissions
                of any air pollutant for which EPA has established a NAAQS, and the
                submission, upon request, of data related to such air quality modeling.
                EPA has published modeling guidelines at 40 CFR part 51, Appendix W,
                for predicting the effects of emissions of criteria pollutants on
                ambient air quality. EPA also recommends in the 2013 memorandum that,
                to meet section 110(a)(2)(K), a State submit or reference the statutory
                or regulatory provisions that provide the air agency with the authority
                to conduct such air quality modeling and to provide such modeling data
                to EPA upon request.
                 Massachusetts state law implicitly authorizes MassDEP to perform
                air quality modeling and provide such modeling data to EPA upon
                request. See M.G.L. c. 21A, Sec. 2(2), (10), (22); M.G.L. c. 111,
                Sec. Sec. 142B-142D. In addition, 310 CMR 7.02 authorizes MassDEP to
                require air dispersion modeling analyses from certain sources and
                permit applicants. As previously discussed, Massachusetts implements
                and enforces the federal PSD program through a delegation agreement.
                This agreement, which is included in the docket for today's action
                requires MassDEP to follow the applicable procedures in EPA's
                permitting regulations at 40 CFR 52.21, as amended from time to time.
                The Commonwealth also collaborates with the Ozone Transport Commission
                (OTC), the Mid-Atlantic Regional Air Management Association, and EPA to
                perform large scale urban airshed modeling.
                 Therefore, EPA proposes that Massachusetts meets the infrastructure
                SIP requirements of section 110(a)(2)(K) for the 2012 PM2.5
                NAAQS.
                L. Section 110(a)(2)(L)--Permitting Fees
                 This section requires SIPs to mandate that each major stationary
                source pay permitting fees to cover the costs of reviewing, approving,
                implementing, and enforcing a permit.
                 Massachusetts implements and operates the Title V permit program,
                which EPA approved on September 28, 2001. See 66 FR 49541. To gain
                approval, Massachusetts demonstrated, among other things, that it
                collects fees sufficient to cover the costs of reviewing and acting on
                permit applications and implementing and enforcing permits.
                [[Page 5031]]
                See 61 FR 3827 (February 2, 1996); 40 CFR 70.9. M.G.L. c. 21A, Sec. 18
                authorizes MassDEP to promulgate regulations establishing fees. To
                collect fees from sources of air emissions, the MassDEP promulgated and
                implements 310 CMR 4.00, Timely Action Schedule and Fee Provisions, and
                310 CMR 7.00, Appendix C, Operating Permit and Compliance Program.
                These regulations set permit compliance fees, including fees for Title
                V operating permits. EPA proposes that the Commonwealth meets the
                infrastructure SIP requirements of section 110(a)(2)(L) for the 2012
                PM2.5 NAAQS.
                M. Section 110(a)(2)(M)--Consultation/Participation by Affected Local
                Entities
                 To satisfy element M, States must provide for consultation and
                allow participation by local political subdivisions affected by the
                SIP. Pursuant to M.G.L. c. 111, Sec. 142D, MassDEP must hold public
                hearings prior to revising its SIP. In addition, M.G.L. c. 30A,
                Massachusetts Administrative Procedures Act, requires MassDEP to
                provide notice and the opportunity for public comment and hearing prior
                to adoption of any regulation. Moreover, the Commonwealth's Executive
                Order No. 145, ``Consultation with Cities & Towns on Administrative
                Mandates,'' which we are proposing to add to the Massachusetts SIP,
                requires State agencies, including MassDEP, to provide notice to the
                Local Government Advisory Committee to solicit input on the impact of
                proposed regulations and other administrative actions on local
                governments. MassDEP also notes that it consults with local political
                subdivisions though a state ``SIP Steering Committee'' and conducts
                stakeholder outreach with local entities as a matter of policy when
                revising the SIP or adopting air regulations. Therefore, EPA proposes
                that Massachusetts meets the infrastructure SIP requirements of section
                110(a)(2)(M) for the 2012 PM2.5 NAAQS.
                N. Massachusetts Regulation and Executive Order Submitted for
                Incorporation Into the SIP
                 Massachusetts' February 9, 2018, infrastructure SIP submittal for
                the 2012 PM2.5 NAAQS included definitions of National
                Ambient Air Quality Standards (NAAQS) or Federal Ambient Air Quality
                Standards, PM10 or Particulate Matter 10, PM10 Emissions, PM2.5 or
                Particulate Matter 2.5, and PM2.5 Emissions in 310 CMR 7.00 that
                Massachusetts included in a submittal to EPA dated May 14, 2018 and
                Executive Order No. 145, ``Consultation with Cities & Towns on
                Administrative Mandates'' (see discussion under element J, Sub-element
                1). EPA is proposing to approve, and incorporate into the Massachusetts
                SIP, the five submitted definitions in 310 CMR 7.00 and Executive Order
                145.
                IV. Proposed Action
                 EPA is proposing to approve most of the elements of the
                infrastructure SIP submitted by Massachusetts on February 9, 2018, for
                the 2012 PM2.5, including the interstate transport
                requirements. This submittal also addresses the interstate transport
                requirements for the 2006 PM2.5 NAAQS, which we are likewise
                proposing to approve. In addition, EPA is proposing to approve a SIP
                revision submitted by Massachusetts on January 31, 2008, for the
                interstate transport requirements for the 1997 PM2.5 NAAQS.
                 EPA's proposed action for each element for the 2012
                PM2.5 NAAQS is stated in Table 1 below.
                 Table 1--Proposed Action on Massachusetts' Infrastructure SIP Submittal
                 for the 2012 PM2.5 NAAQS
                ------------------------------------------------------------------------
                 2012 PM2.5 NAAQS
                 Element
                ------------------------------------------------------------------------
                (A): Emission limits and other control measures..... A
                (B): Ambient air quality monitoring and data system. A
                (C)1: Enforcement of SIP measures................... A
                (C)2: PSD program for major sources and major FS
                 modifications......................................
                (C)3: PSD program for minor sources and minor A
                 modifications......................................
                (D)1: Contribute to nonattainment/interfere with A
                 maintenance of NAAQS...............................
                (D)2: PSD........................................... FS
                (D)3: Visibility Protection......................... A
                (D)4: Interstate Pollution Abatement................ FS
                (D)5: International Pollution Abatement............. A
                (E)1: Adequate resources............................ A
                (E)2: State boards.................................. A
                (E)3: Necessary assurances with respect to local NA
                 agencies...........................................
                (F): Stationary source monitoring system............ A
                (G): Emergency power................................ A
                (H): Future SIP revisions........................... A
                (I): Nonattainment area plan or plan revisions under +
                 part D.............................................
                (J)1: Consultation with government officials........ FS
                (J)2: Public notification........................... A
                (J)3: PSD........................................... FS
                (J)4: Visibility protection......................... +
                (K): Air quality modeling and data.................. A
                (L): Permitting fees................................ A
                (M): Consultation and participation by affected A
                 local entities.....................................
                ------------------------------------------------------------------------
                [[Page 5032]]
                 In the above table, the key is as follows:
                ------------------------------------------------------------------------
                
                ------------------------------------------------------------------------
                A......................................... Approve.
                NA........................................ Not applicable.
                FS........................................ Finding of failure to
                 submit.
                +......................................... Not germane to
                 infrastructure SIPs.
                ------------------------------------------------------------------------
                 EPA also is proposing to approve the transport provisions (Element
                (D)1 in Table 1) for the 1997 and 2006 PM2.5 NAAQS, as well
                as the Visibility Protection requirements (Element (D)3 in Table 1) for
                the 2006 PM2.5 NAAQS.
                 We are also proposing to convert to full approval previous
                conditional approvals for elements A and E(ii) for the 1997 and 2006
                PM2.5 NAAQS and previous conditional approvals for element A
                for the 1997 ozone, 2008 lead, 2008 ozone, 2010 nitrogen dioxide, and
                2010 sulfur dioxide NAAQS. For the 1997 and 2006 PM2.5
                NAAQS, we are also proposing approvals for prong 4 of section
                110(a)(2)(D)(i)(II) and for the section 115-related requirements of
                section 110(a)(2)(D)(ii).
                 As shown in Table 1, we are proposing to issue a finding of failure
                to submit for the PSD-related requirements of (C)2, (D)2, (D)4, (J)1,
                and (J)3. However, as noted above, Massachusetts is already subject to
                a FIP for PSD, and so EPA will have no additional FIP obligations under
                section 110(c) of the Act if this action is finalized as proposed.
                Furthermore, this action will not subject the Commonwealth to mandatory
                sanctions.
                 EPA is also proposing to approve, and incorporate into the
                Massachusetts SIP, definitions of National Ambient Air Quality
                Standards (NAAQS) or Federal Ambient Air Quality Standards, PM10 or
                Particulate Matter 10, PM10 Emissions, PM2.5 or Particulate Matter 2.5,
                and PM2.5 Emissions in 310 CMR 7.00 that Massachusetts included in a
                submittal to EPA dated May 14, 2018.
                 Finally, EPA is proposing to approve, and incorporate into the
                Massachusetts SIP, Massachusetts Executive Order 145, Consultation with
                Cities & Towns on Administrative Mandates, effective November 20, 1978,
                which Massachusetts included for approval in its infrastructure SIP
                submittal for the 2012 PM2.5 NAAQS.
                 EPA is soliciting public comments on the issues discussed in this
                notice or on other relevant matters. These comments will be considered
                before taking final action. Interested parties may participate in the
                Federal rulemaking procedure by submitting written comments to this
                proposed rule by following the instructions listed in the ADDRESSES
                section of this Federal Register.
                V. Incorporation by Reference
                 In this rule, the EPA is proposing to include in a final EPA rule
                regulatory text that includes incorporation by reference. In accordance
                with requirements of 1 CFR 51.5, the EPA is proposing to incorporate by
                reference Executive Order 145 and the part of 310 CMR 7.00 referenced
                in Section IV above. The EPA has made, and will continue to make, these
                documents generally available through https://www.regulations.gov and
                at the EPA Region 1 Office (please contact the person identified in the
                FOR FURTHER INFORMATION CONTACT section of this preamble for more
                information).
                VI. Statutory and Executive Order Reviews
                 Under the Clean Air Act, the Administrator is required to approve a
                SIP submission that complies with the provisions of the Act and
                applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a).
                Thus, in reviewing SIP submissions, EPA's role is to approve state
                choices, provided that they meet the criteria of the Clean Air Act.
                Accordingly, this proposed action merely approves state law as meeting
                Federal requirements and does not impose additional requirements beyond
                those imposed by state law. For that reason, this proposed action:
                 Is not a significant regulatory action subject to
                review by the Office of Management and Budget under Executive Orders
                12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January
                21, 2011);
                 This action is not expected to be an Executive Order
                13771 regulatory action because this action is not significant under
                Executive Order 12866;
                 Does not impose an information collection burden under
                the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et
                seq.);
                 Is certified as not having a significant economic
                impact on a substantial number of small entities under the
                Regulatory Flexibility Act (5 U.S.C. 601 et seq.);
                 Does not contain any unfunded mandate or significantly
                or uniquely affect small governments, as described in the Unfunded
                Mandates Reform Act of 1995 (Pub. L. 104-4);
                 Does not have Federalism implications as specified in
                Executive Order 13132 (64 FR 43255, August 10, 1999);
                 Is not an economically significant regulatory action
                based on health or safety risks subject to Executive Order 13045 (62
                FR 19885, April 23, 1997);
                 Is not a significant regulatory action subject to
                Executive Order 13211 (66 FR 28355, May 22, 2001);
                 Is not subject to requirements of Section 12(d) of the
                National Technology Transfer and Advancement Act of 1995 (15 U.S.C.
                272 note) because application of those requirements would be
                inconsistent with the Clean Air Act; and
                 Does not provide EPA with the discretionary authority
                to address, as appropriate, disproportionate human health or
                environmental effects, using practicable and legally permissible
                methods, under Executive Order 12898 (59 FR 7629, February 16,
                1994).
                 In addition, the SIP is not approved to apply on any Indian
                reservation land or in any other area where EPA or an Indian tribe
                has demonstrated that a tribe has jurisdiction. In those areas of
                Indian country, the rule does not have tribal implications and will
                not impose substantial direct costs on tribal governments or preempt
                tribal law as specified by Executive Order 13175 (65 FR 67249,
                November 9, 2000).
                List of Subjects in 40 CFR Part 52
                 Environmental protection, Air pollution control, Carbon monoxide,
                Incorporation by reference, Intergovernmental relations, Lead, Nitrogen
                dioxide, Ozone, Particulate matter, Reporting and recordkeeping
                requirements, Sulfur oxides, Volatile organic compounds.
                 Dated: February 11, 2019.
                Deborah Szaro,
                Acting Regional Administrator, EPA Region 1.
                [FR Doc. 2019-02658 Filed 2-19-19; 8:45 am]
                 BILLING CODE 6560-50-P
                

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