Determination of Attainment for PM10:
Federal Register: January 31, 2011 (Volume 76, Number 20)
Rules and Regulations
Page 5280-5284
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
DOCID:fr31ja11-8
ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 81
EPA-R08-OAR-2010-0749; FRL-9260-6
Determination of Attainment for PM10; Columbia Falls and Libby Nonattainment Areas, Montana
AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.
SUMMARY: EPA has determined that the Columbia Falls and Libby nonattainment areas in Montana attained the National Ambient Air
Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than or equal to a nominal ten micrometers
(PM10) as of December 31, 1994.
DATES: This rule is effective on April 1, 2011 without further notice, unless EPA receives adverse comments by March 2, 2011. If adverse comments are received, EPA will publish a timely withdrawal of the direct final rule in the Federal Register informing the public that the rule will not take effect.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2010-0749, by one of the following methods: http://www.regulations.gov. Follow the on-line instructions for submitting comments.
E-mail: freeman.crystal@epa.gov.
Fax: (303) 312-6064 (please alert the individual listed in the FOR FURTHER INFORMATION CONTACT if you are faxing comments).
Mail: Callie Videtich, Director, Air Program,
Environmental Protection Agency (EPA), Region 8, Mailcode 8P-AR, 1595
Wynkoop Street, Denver, Colorado 80202-1129.
Hand Delivery: Callie Videtich, Director, Air Program,
Environmental Protection Agency (EPA), Region 8, Mailcode 8P-AR, 1595
Wynkoop Street, Denver, Colorado 80202-1129. Such deliveries are only accepted Monday through Friday, 8 a.m. to 4:30 p.m., excluding Federal holidays. Special arrangements should be made for deliveries of boxed information.
Instructions: Direct your comments to Docket ID No. EPA-R08-OAR- 2010-0749. EPA's policy is that all comments received will be included in the public docket without change and may be made available online at http://www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be
Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through http:// www.regulations.gov or e-mail. The http://www.regulations.gov Web site is an ``anonymous access'' system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA, without going through http://www.regulations.gov your e-mail address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD-ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. For additional instructions on submitting comments, go to Section I. General Information of the SUPPLEMENTARY
INFORMATION section of this document.
Docket: All documents in the docket are listed in the http:// www.regulations.gov index. Although listed in the index, some information is not publicly available, e.g., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publicly available only in hard copy.
Publicly available docket materials are available either electronically at http://www.regulations.gov or in hard copy at the Air Program,
Environmental Protection Agency (EPA), Region 8, 1595 Wynkoop Street,
Denver, Colorado 80202-1129. EPA requests that if at all possible, you contact the individual listed in the FOR FURTHER INFORMATION CONTACT section to view the hard copy of the docket. You may view the hard copy of the docket Monday through Friday, 8 a.m. to 4 p.m., excluding
Federal holidays.
FOR FURTHER INFORMATION CONTACT: Crystal Freeman, U.S. Environmental
Protection Agency, Region 8, Air Program, Mail Code 8P-AR, 1595 Wynkoop
Street, Denver, Colorado 80202-1129, (303) 312-6602, freeman.crystal@epa.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
-
General Information
-
Background
-
PM10Standard
-
Columbia Falls PM10Nonattainment Area i. Attainment Date for the Columbia Falls PM10
Nonattainment Area ii. PM10Planning in the Columbia Falls
PM10Nonattainment Area
-
Libby PM10Nonattainment Area i. Attainment Date for the Libby PM10Nonattainment
Area ii. PM10Planning in the Libby PM10
Nonattainment Area
-
-
Attainment Determination
-
What are the requirements for an attainment determination?
Page 5281
-
What do the air quality data show for the Columbia Falls
PM10nonattainment area?
-
What do the air quality data show for the Libby
PM10nonattainment area?
-
-
EPA's Final Action
-
Statutory and Executive Order Reviews
Definitions
For the purpose of this document, we are giving meaning to certain words or initials as follows:
(i) The words or initials Act or CAA mean or refer to the Clean Air
Act, unless the context indicates otherwise.
(ii) The words EPA, we, us or our mean or refer to the United
States Environmental Protection Agency.
(iii) The initials SIP mean or refer to State Implementation Plan.
(iv) The words State or Montana mean the State of Montana, unless the context indicates otherwise.
-
General Information
-
What should I consider as I prepare my comments for EPA? 1. Submitting CBI. Do not submit this information to EPA through http://regulations.gov or e-mail. Clearly mark the part or all of the information that you claim to be CBI. For CBI information placed on a disk or CD-ROM that you mail to EPA, mark the outside of the disk or
CD-ROM as CBI and then identify electronically within the disk or CD-
ROM the specific information that is claimed as CBI. In addition to one complete version of the comment that includes information claimed as
CBI, a copy of the comment that does not contain the information claimed as CBI must be submitted for inclusion in the public docket.
Information so marked will not be disclosed except in accordance with procedures set forth in 40 CFR part 2. 2. Tips for Preparing Your Comments. When submitting comments, remember to: a. Identify the rulemaking by docket number and other identifying information (subject heading, Federal Register date and page number). b. Follow directions--The agency may ask you to respond to specific questions or organize comments by referencing a Code of Federal
Regulations (CFR) part or section number. c. Explain why you agree or disagree; suggest alternatives and substitute language for your requested changes. d. Describe any assumptions and provide any technical information and/or data that you used. e. If you estimate potential costs or burdens, explain how you arrived at your estimate in sufficient detail to allow for it to be reproduced. f. Provide specific examples to illustrate your concerns, and suggest alternatives. g. Explain your views as clearly as possible, avoiding the use of profanity or personal threats. h. Make sure to submit your comments by the comment period deadline identified.
-
-
Background
-
PM10Standard
The NAAQS are levels for certain ambient air pollutants set by EPA to protect public health and welfare. PM10, or particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers, is among the ambient air pollutants for which EPA has established health-based standards. On July 1, 1987 (52 FR 24634), EPA promulgated two primary standards for PM10: A 24-hour standard of 150 micrograms per cubic meter ([mu]g/m\3\) and an annual
PM10standard of 50 [mu]g/m\3\. EPA also promulgated secondary PM10standards that were identical to the primary standards.
Effective December 18, 2006, EPA revoked the annual PM10 standard but retained the 24-hour PM10standard.\1\ 71 FR 61144 (October 17, 2006). The 24-hour PM10standard is attained when the expected number of days per calendar year with a 24- hour concentration above 154 [mu]g/m\3\, as determined in accordance with 40 CFR part 50, appendix K, is equal to or less than one.\2\ 40
CFR 50.6 and 40 CFR part 50, appendix K.
\1\ Because the annual PM10standard was revoked effective December 18, 2006, see 71 FR 61144 (October 17, 2006), this document discusses only attainment of the 24-hour
PM10standard. Columbia Falls and Libby PM10 nonattainment areas were in attainment of the revoked annual
PM10standard.
\2\ An exceedance is defined as a daily value that is above the level of the 24-hour standard (150 [mu]g/m\3\) after rounding to the nearest 10 [mu]g/m\3\ (i.e. values ending in 5 or greater are to be rounded up). Thus, a recorded value of 154 [mu]g/m\3\ would not be an exceedance since it would be rounded to 150 [mu]g/m\3\ whereas a recorded value of 155 [mu]g/m\3\ would be an exceedance since it would be rounded to 160 [mu]g/m\3\. See 40 CFR part 50, appendix K, section 1.0.
The EPA also promulgated policies and regulations by which it will implement the PM10NAAQS (52 FR 24672). In accordance with these policies, EPA has categorized areas of the Nation into three groups based on the likelihood that the existing SIP must be revised to protect the PM10NAAQS. Areas with a strong likelihood of violating the PM10NAAQS and requiring substantial SIP revisions were placed in Group I; areas where attainment of the
PM10NAAQS is uncertain and the SIP may require only slight adjustment were placed in Group II; and areas with a strong likelihood of attaining the PM10NAAQS, and therefore probably having an adequate control strategy, were placed in Group III.\3\ By this notice, EPA is identifying the Group I and Group II areas in Montana that reached attainment.
\3\ The EPA used a three-step process to categorize areas into
Groups I, II, and III. First, where only ambient TSP data or limited amounts of PM10data were available, EPA in cooperation with State agencies used those data and the probability guideline to classify areas preliminarily as Group I, II, or III. The EPA presumed that, at a minimum, the (1) areas with a probability of not attaining the PM10standard of at least 95 percent fit into Group I; (2) areas with a probability of between 20 and 95 percent fit into Group II; and (3) areas with a probability of less than 20 percent fit into Group III. 52 FR 29383, 29384 (August 7, 1987).
-
Columbia Falls PM10Nonattainment Area
On August 7, 1987 (52 FR 29383), EPA identified a number of areas across the country as PM10``Group II'' areas of concern, that is, areas between 20% and 95% likelihood of violating the
PM10NAAQS. The Columbia Falls PM10nonattainment area was identified as a Group II area of concern.
Areas meeting the requirements of section 107(d)(4)(B) were designated nonattainment for PM10by operation of law and classified ``moderate'' upon enactment of the 1990 Clean Air Act
Amendments. 42 U.S.C. 7407(d)(4)(B). These areas included all former
Group II PM10planning areas identified on August 7, 1987
(52 FR 29383), and other areas violating the NAAQS for PM10 prior to January 1, 1989. On October 31, 1990 (55 FR 45799), EPA further clarified the descriptions of Group I and Group II areas of concern listed in the August 7, 1987 (52 FR 29383) notice. A Federal
Register notice announcing the areas designated nonattainment for
PM10upon enactment of the 1990 Clean Air Act Amendments, known as ``initial'' PM10nonattainment areas, was published on March 15, 1991 (56 FR 11101). The Columbia Falls PM10 nonattainment area was one of these initial moderate PM10 nonattainment areas. i. Attainment Date for the Columbia Falls PM10Nonattainment
Area
All initial moderate PM10nonattainment areas had the same applicable attainment date of December 31, 1994. States containing initial moderate PM10nonattainment areas were required to develop and submit to EPA by November 15, 1991, a SIP revision providing for implementation of reasonably available control measures
(RACM), including reasonably available control technology (RACT), and a demonstration of whether attainment of
Page 5282
the PM10NAAQS by the December 31, 1994 attainment date was practicable. See section 189(a). ii. PM10Planning in the Columbia Falls PM10
Nonattainment Area
After the Columbia Falls PM10nonattainment area was designated nonattainment for PM10, the Montana Board of
Health and Environmental Sciences (MBHES) began in the early 1990s to prepare the technical elements needed to bring the area into attainment and meet the planning requirements of Title I of the CAA. Based on these technical elements, MBHES developed and implemented control measures on PM10sources in the Columbia Falls
PM10nonattainment area. The Columbia Falls PM10
SIP was originally adopted by the MBHES on January 24, 1992, and submitted to EPA on May 6, 1992. Deficiencies were identified by EPA and the final technical corrections were submitted to EPA on June 15, 1993. EPA approved the Columbia Falls PM10SIP on April 14, 1994, with technical corrections dated June 15, 1993 (59 FR 17700). The
State failed to submit the contingency measures by the November 15, 1993, due date. On January 19, 1994, EPA made a finding that the State failed to submit the contingency measures. In response to this finding the Governor of Montana submitted revisions to the SIP for Columbia
Falls dated August 26, 1994, to address the contingency measures and
EPA approved the revisions on March 19, 1996 (61 FR 11153).
-
The Libby PM10Nonattainment Area
On August 7, 1987 (52 FR 29383), EPA identified a number of areas across the country as PM10``Group I'' areas of concern, that is, areas with a 95% or greater likelihood of violating the
PM10NAAQS and requiring substantial planning efforts. The
Libby PM10nonattainment area was identified as a Group I area of concern.
Areas meeting the requirements of section 107(d)(4)(B) were designated nonattainment for PM10by operation of law and classified ``moderate'' upon enactment of the 1990 Clean Air Act
Amendments. See 42 U.S.C. 7407(d)(4)(B). These areas included all former Group I PM10planning areas identified on August 7, 1987 (52 FR 29383), and other areas violating the NAAQS for
PM10prior to January 1, 1989. On October 31, 1990 (55 FR 45799), EPA further clarified the descriptions of Group I and Group II areas of concern listed in the August 7, 1987 (52 FR 29383) notice. A
Federal Register notice announcing the areas designated nonattainment for PM10upon enactment of the 1990 Clean Air Act
Amendments, known as ``initial'' PM10nonattainment areas, was published on March 15, 1991 (56 FR 11101). The Libby
PM10nonattainment area was one of these initial moderate
PM10nonattainment areas. i. Attainment Date for the Libby PM10Nonattainment Area
All initial moderate PM10nonattainment areas had the same applicable attainment date of December 31, 1994. States containing initial moderate PM10nonattainment areas were required to develop and submit to EPA by November 15, 1991, a SIP revision providing implementation of RACM, including RACT, and a demonstration of whether attainment of the PM10NAAQS by the December 31, 1994 attainment date was practicable. See section 189(a). ii. PM10Planning in the Libby PM10Nonattainment
Area
After the Libby PM10nonattainment area was designated nonattainment for PM10, the MBHES began in the early 1990s to prepare the technical elements needed to bring the area into attainment and meet the planning requirements of Title I of the CAA.
Based on these technical elements, MBHES developed and implemented control measures on PM10sources in the Libby
PM10nonattainment area. The Libby PM10SIP was originally adopted by the MBHES on November 15, 1991, and submitted to
EPA on November 25, 1991. Deficiencies were identified by EPA and revisions were adopted by MBHES on March 19, 1993, and submitted to EPA on May 24, 1993. Final technical corrections to the SIP were sent to
EPA on June 3, 1994. EPA approved the Libby PM10SIP, with the exception of the contingency measures, on August 30, 1994 (59 FR 44627). The Governor of Montana submitted revisions to the contingency measures on March 15, 1995 and EPA approved the contingency measures on
September 30, 1996 (61 FR 51014).
-
-
Attainment Determination
-
What are the requirements for an attainment determination?
Generally, EPA determines whether an area's air quality is meeting the PM10NAAQS based upon complete, quality-assured data gathered at established state and local air monitoring stations (SLAMS) and national air monitoring stations (NAMS) in the nonattainment areas and entered in the EPA Air Quality System (AQS). Data from air monitors operated by state/local/tribal agencies in compliance with EPA monitoring requirements must be submitted to AQS. EPA relies primarily on data in AQS when determining the attainment status of an area. See 40 CFR 50.6; 40 CFR part 50, appendix J; and 40 CFR part 58, appendix
-
EPA will also consider air quality data from other air monitoring stations in the nonattainment area provided that the stations meet the federal monitoring requirements for SLAMS, including the quality assurance and quality control criteria in 40 CFR part 58, appendix A. 40 CFR 58.14 (2006) and 58.20 (2007); \4\ 71 FR 61236, 61242 (October 17, 2006). All valid data are reviewed to determine the area's air quality status in accordance with 40 CFR part 50, appendix K.
\4\ EPA promulgated amendments to the ambient air monitoring regulations in 40 CFR parts 53 and 58 on October 17, 2006. See 71 FR 61236. The requirements for Special Purpose Monitors were revised and moved from 40 CFR 58.14 to 40 CFR 58.20.
Attainment of the 24-hour PM10standard is determined by calculating the expected number of exceedances of the standard in a year. The 24-hour standard is attained when the expected number of days per calendar year with a 24-hour concentration above 154 [mu]g/m\3\ is less than or equal to one. Generally, three consecutive years of air quality data are required to show attainment of the 24-hour
PM10standard.
-
What do the air quality data show for the Columbia Falls
PM10nonattainment Area?
Because the Columbia Falls PM10nonattainment area had a
December 31, 1994, attainment date, our determination of whether or not the area attained the standard is based on 1992, 1993 and 1994 complete quality-assured data for the area. During that period, the State of
Montana operated one PM10SLAMS monitoring site at the
Columbia Falls Junior High School, which is within the Columbia Falls nonattainment area. The monitoring site met EPA SLAMS network design and siting requirements set forth at 40 CFR part 58, appendices D and
-
The Columbia Falls Junior High School monitor began operation on
April 21, 1987 and ceased operation on December 28, 2002.
Our review of complete quality-assured air quality data from the
Columbia Falls Junior High School site for the period from January 1, 1992 through December 31, 1994, shows no data values exceeded the level of the 24-hour standard. Because there were no recorded exceedances of the 24-hour
Page 5283
PM10standard during calendar years 1992-1994, the estimated number of PM10exceedances for the 1992-1994 period is 0.0, as seen in Figure 1. Therefore, the Columbia Falls nonattainment area has demonstrated attainment for the 24-hour PM10NAAQS as of the attainment date of December 31, 1994. Additionally, we evaluated complete quality-assured air quality data at all monitors within the
Columbia Falls PM10nonattainment area after the attainment date of December 31, 1994 to 2009 and found no recorded exceedances.
Figure 1--Number of Estimated PM10 Exceedances in Columbia Falls Nonattainment Area
Columbia Falls
Corner of C St & 4th Corner of C St & 4th
Junior High School
Ave
Ave
30-029-0003-2
30-029-0007-1
30-029-0007-2
1992.......................................
0
*
* 1993.......................................
0
*
* 1994.......................................
0
*
* 1995.......................................
0
*
* 1996.......................................
0
*
* 1997.......................................
0
*
* 1998.......................................
0
*
* 1999.......................................
0
*
* 2000.......................................
0
*
* 2001.......................................
0
0
* 2002.......................................
0
0
* 2003.......................................
*
0
* 2004.......................................
*
0
* 2005.......................................
*
0
0 2006.......................................
*
0
0 2007.......................................
*
0
0 2008.......................................
*
0
0 2009.......................................
*
0
0
*No Data Collected.
-
What do the air quality data show for the Libby PM10 nonattainment area?
Because the Libby PM10nonattainment area had a December 31, 1994, attainment date, our determination of whether or not the area attained the standard is based on 1992, 1993 and 1994 complete quality- assured data for the area. During that period, the State of Montana operated two PM10SLAMS monitoring sites within the Libby nonattainment area: the Lincoln County Courthouse site and the Libby
Courthouse Annex site. Both monitoring sites met EPA SLAMS network design and siting requirements set forth at 40 CFR part 58, appendices
D and E. The Lincoln County Courthouse monitor began operation on April 21, 1987 and ceased operation on March 31, 1995. The Libby Courthouse
Annex monitor began operating on October 8, 1993 and continues to operate.
Our review of complete quality-assured air quality data from the
Lincoln County Courthouse site and the Libby Courthouse Annex site for the period from January 1, 1992 through December 31, 1994, shows no data values exceeded the level of the 24-hour standard. Because there were no recorded exceedances of the 24-hour PM10standard during calendar years 1992-1994, the estimated number of
PM10exceedances for the 1992-1994 period is 0.0, as seen in
Figure 2. Therefore, the Libby nonattainment area has demonstrated attainment for the 24-hour PM10NAAQS as of the attainment date of December 31, 1994. Additionally, we evaluated complete quality- assured air quality data at all monitors within the Libby
PM10nonattainment area after the attainment date of
December 31, 1994 to 2009 and found no recorded exceedances.
Figure 2--Number of Estimated PM10 Exceedance in Libby PM10 Nonattainment Area
Lincoln Courthouse
Libby Courthouse
Libby Courthouse
Annex
Annex
30-053-0012-2
30-053-0018-1
30-053-0018-2
1992.......................................
0
*
* 1993.......................................
0
0
* 1994.......................................
0
0
* 1995.......................................
0
0
* 1996.......................................
*
0
* 1997.......................................
*
0
* 1998.......................................
*
0
* 1999.......................................
*
0
* 2000.......................................
*
0
* 2001.......................................
*
0
* 2002.......................................
*
0
0 2003.......................................
*
0
0 2004.......................................
*
0
0 2005.......................................
*
0
0 2006.......................................
*
0
0 2007.......................................
*
0
0
Page 5284
2008.......................................
*
0
0 2009.......................................
*
0
*
*No Data Collected
-
-
EPA's Final Action
EPA is determining that the Columbia Falls and Libby areas have attained the PM10standard based on the three years of complete, quality-assured data as of the attainment date of December 31, 1994. For the period from 1992-1994, the expected exceedance for both areas is 0.0, which is equal to or less than the expected exceedance rate of 1.0 (40 CFR part 50, appendix K). Because complete quality-assured data for this period shows an expected exceedance rate equal to or below the PM10standard, EPA concludes that the areas have met the standard. Pursuant to CAA Sec. 188(c), EPA is required to make a determination of attainment. There were no violations and therefore no health risk. EPA therefore determines that the Columbia Falls and Libby nonattainment areas have attained the 24- hour PM10NAAQS as of the December 31, 1994 attainment date.
-
Statutory and Executive Order Review
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 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 action:
Is not a ``significant regulatory action'' subject to review by the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993);
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, this rule does not have tribal implications as specified by Executive Order 13175 (65 FR 67249, November 9, 2000), because the SIP is not approved to apply in Indian country located in the state, and EPA notes that it will not impose substantial direct costs on tribal governments or preempt tribal law.
The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the
Small Business Regulatory Enforcement Fairness Act of 1996, generally provides that before a rule may take effect, the agency promulgating the rule must submit a rule report, which includes a copy of the rule, to each House of the Congress and to the Comptroller General of the
United States. EPA will submit a report containing this action and other required information to the U.S. Senate, the U.S. House of
Representatives, and the Comptroller General of the United States prior to publication of the rule in the Federal Register. A major rule cannot take effect until 60 days after it is published in the Federal
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 804(2).
Under section 307(b)(1) of the Clean Air Act, petitions for judicial review of this action must be filed in the United States Court of Appeals for the appropriate circuit by April 1, 2011. Filing a petition for reconsideration by the Administrator of this final rule does not affect the finality of this action for the purposes of judicial review nor does it extend the time within which a petition for judicial review may be filed, and shall not postpone the effectiveness of such rule or action. Parties with objections to this direct final rule are encouraged to file a comment in response to the parallel notice of proposed rulemaking for this action published in the proposed rules section of today's Federal Register, rather than file an immediate petition for judicial review of this direct final rule, so that EPA can withdraw this direct final rule and address the comment in the proposed rulemaking. This action may not be challenged later in proceedings to enforce its requirements. See section 307(b)(2).
List of Subjects in 40 CFR Part 81
Environmental protection, Air pollution control, Intergovernmental relations, Particulate matter, Reporting and recordkeeping requirements.
Dated: January 20, 2011.
James B. Martin,
Regional Administrator, Region 8.
FR Doc. 2011-2121 Filed 1-28-11; 8:45 am
BILLING CODE 6560-50-P
