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EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Colorado SIP

§ 52.319 Conditional approval.

(a) The EPA is conditionally approving portions of the Colorado SIP revisions submitted on May 14, 2018 and May 13, 2020. The conditional approval is based upon the October 20, 2021 commitment from the State to submit a SIP revision consisting of rule revisions that will cure the identified deficiencies by June 30, 2022. If the State fails to meet its commitment, the conditional approval will be treated as a disapproval with respect to the rules and CTG category for which the corrections are not met. The following are conditionally approved:

(1) Regulation number 7, Section XII.J.1. from the May 14, 2018 submittal and Part D, Sections I.D.-D.3.a.(i), I.D.3.b.-b.(i), I.D.3.b.(ii), I.D.3.b.(v), I.D.3.b.(vii), I.D.3.b.(ix), I.D.4.-I.E.1.a., I.E.2.-c.(ii), I.E.2.c.(iv)-c.(viii), I.F.-1.d., I.F.1.g.-g.(xii), I.F.1.h.-F.2.a., I.F.2.c.-c.(vi), I.F.3.-3.a, I.F.3.c.-c.(i)(C), and I.J.1.-j. from the May 13, 2020 submittal.

(2) Colorado's determination that Reg. 7, Part D satisfies 2008 ozone NAAQS SIP RACT requirements for the following category, “Control Techniques Guidelines for the Oil and Natural Gas Industry” EPA-453/B-16-001, October 2016.

(b) [Reserved].

[87 FR 29231, May 13, 2022]

§ 52.320 Identification of plan.

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan for Colorado under section 110 of the Clean Air Act, 42 U.S.C. 7410 and 40 CFR part 51 to meet national ambient air quality standards or other requirements under the Clean Air Act.

(b) Incorporation by reference.

(1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to June 1, 2015, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as submitted by the state to EPA, and notice of any change in the material will be published in the Federal Register. Entries for paragraphs (c) and (d) of this section with EPA approval dates after June 1, 2015, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 8 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules/regulations which have been approved as part of the State Implementation Plan as of June 1, 2015.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 8, 1595 Wynkoop Street, Denver, Colorado, 80202-1129; Air and Radiation Docket and Information Center, U.S. Environmental Protection Agency, West Building, 1301 Constitution Ave. NW., Washington, DC 20460; and, the National Archives and Records Administration (NARA). For information on the availability of materials from the docket in the EPA Headquarters Library, please call the Office of Air and Radiation (OAR) at (202) 566-1742. For information on the availability of this material at NARA, call (202) 741-6030, or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html. Copies of the Colorado regulations we have approved are also available at http://www.epa.gov/region8/air/sip.html.

Table E - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures

TitleState effective dateEPA effective dateFinal rule citation/dateComments
Legislation
Concerning Air Pollution Control, and, in connection therewith, revising the Air Program to comply with requirements of the Federal “Clean Air Act Amendments of 1990”7/1/199312/8/199459 FR 55584, 11/08/94 
Concerning Legislative Procedures for the Approval of State Implementation Plans and Regulations Related to Air Pollution5/31/19954/30/199863 FR 15294, 03/31/98 
Maintenance and Attainment Plan Elements
Aspen
Revised PM10 Maintenance Plan for the Aspen Attainment/Maintenance Area12/16/201011/18/201378 FR 57496, 09/19/13 
Canon City
PM10 Maintenance Plan for Canon City11/20/20089/9/201378 FR 41307, 07/10/13 
Colorado Springs
Colorado Springs Carbon Monoxide Maintenance Plan12/17/20099/30/201378 FR 46521, 08/01/13 
Denver Metropolitan Area
1982 Denver Regional Element of the State Air Quality Implementation Plan3/4/200110/11/200166 FR 47086, 09/11/01 
Carbon Monoxide Maintenance Plan for the Denver Metropolitan Area8/30/200311/15/200469 FR 55752, 09/16/04 
Ozone Redesignation Request and Maintenance Plan for the Denver Metropolitan Area1/11/200110/11/200166 FR 47086, 09/11/01 
PM10 Redesignation Request and Maintenance Plan For the Denver Metropolitan Area4/19/200110/16/200267 FR 58335, 09/16/02 
Revision to the Colorado State Implementation Plan: Concerning the removal of the Colorado Clean Vehicle Fleet Program from the SIP, and the adoption of a replacement program3/1/20001/14/200266 FR 64751, 12/14/01 
Early Action Compact Ozone Action Plan5/31/20049/19/200570 FR 48652, 08/19/05 
2008 Ozone Moderate Area Attainment Plan1/14/20178/2/201883 FR 31068, 7/3/2018Except RACT for Metal Furniture Coatings, Miscellaneous Metal Products Coatings, Wood Furniture Manufacturing Operations, Industrial Cleaning Solvents, Aerospace, Oil and Natural Gas Industry, and major source RACT.
Reasonably Available Control Technology for the 2008 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) State Implementation Plan (RACT SIP)11/21/20176/13/202287 FR 29228, 5/13/2022Previous SIP approvals 7/3/2018, 2/24/202, and 11/5/2021. Conditional approval of oil and gas RACT 5/13/2022.
Ozone (8-hour, 2015) DMNFR NNSR Certification7/6/20206/13/202287 FR 29232, 5/13/2022 
Contingency Measures for the 2008 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) Serious State Implementation Plan (Contingency Measures SIP)2/14/202505/11/202691 FR 17857, 4/9/2026Approval of previously disapproved element.
Landfill/biogas fired engine, refinery fuel process heater, and cold rolling mill RACT for the 2008 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) Serious State Implementation Plan2/14/202505/11/202691 FR 17857, 4/9/2026Excluding process heater H-1717 due to identified error in Colorado's submission.
Fort Collins
Revised Carbon Monoxide Maintenance Plan, Fort Collins Attainment/Maintenance Area12/16/201011/12/201378 FR 56164, 09/12/13 
Greeley
Greeley Carbon Monoxide Maintenance Plan12/17/200910/1/201378 FR 46816, 08/02/13 
Lamar
PM10 Redesignation Request and Maintenance Plan for the Lamar Area12/30/200111/25/200570 FR 61563, 10/25/05 
Longmont
Revised Carbon Monoxide Maintenance Plan for the Longmont Attainment/Maintenance Area3/1/200411/29/200469 FR 58264, 09/30/04 
Pagosa Springs
Final Revised PM10 Maintenance Plan for the Pagosa Springs Attainment/Maintenance Area11/19/20094/9/201479 FR 13256, 03/10/14 
Steamboat Springs
Revised PM10 Maintenance Plan for the Steamboat Springs Attainment/Maintenance Area1/30/20123/23/201580 FR 2827, 01/21/15 
Telluride
Revised PM10 Attainment/Maintenance Plan Telluride Attainment/Maintenance Area11/19/20093/13/201479 FR 8090, 02/11/14 
Local Ordinances/Resolutions
Adopting the Fort Collins Better Air Campaign for Inclusion in the Fort Collins Element of the State Implementation Plan for Air Quality9/5/19896/17/199156 FR 15499, 04/17/91 
Visibility
State Implementation Plan for Class I Visibility Protection, State of Colorado11/19/198710/11/198853 FR 30428, 08/12/88 
Regional Haze 5 Year Progress Report11/19/201510/11/201984 FR 47884, 9/11/2019 
Long-Term Strategy Review and Revision of Colorado's State Implementation Plan for Class I Visibility Protection, Part II: Revision of the Long-Term Strategy11/18/200412/4/200671 FR 64465, 11/02/06 

[80 FR 58209, Sept. 28, 2015, as amended at 81 FR 3966, Jan. 25, 2016; 81 FR 72722, Oct. 21, 2016]

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