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  2. Air Quality Implementation Plans

EPA Approved Regulations in the Wyoming SIP

§52.2620   Identification of plan.

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan for Wyoming 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 September 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 it exists on the date of the approval, and notice of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with EPA approval dates after September 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 SIP as of September 1, 2015.

(3) Copies of the materials incorporated by reference may be inspected at the EPA Region 8 Office, Office of Partnerships and Regulatory Assistance (OPRA), Air Program, 1595 Wynkoop Street, Denver, Colorado 80202-1129 and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

EPA-approved regulations.

Rule No.Rule titleState
effective
date
EPA
Effective
date
Final rule citation/dateComments
Chapter 01. Common Provisions.
Section 02Authority10/29/19998/27/200469 FR 44965, 7/28/04 
Section 03Definitions2/14/201312/23/201378 FR 69998, 11/22/13 
Section 04Diluting and concealing emissions10/29/19998/27/200469 FR 44965, 7/28/04 
Section 05Unavoidable equipment malfunction1/30/20066/15/201075 FR 19886, 4/16/10 
Section 06Credible Evidence12/8/20006/15/201075 FR 19886, 4/16/10 
Section 07Greenhouse gasses2/14/201312/23/201378 FR 69998, 11/22/13 
Chapter 02. Ambient Standards.
Section 02Ambient standards for particulate matter4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 02 (b), (c), and (d)Ambient standards for particulate matter10/13/201511/14/2016.10/12/2016. 81 FR 70364 
Section 03Ambient standards for nitrogen oxides4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 04Ambient standards for sulfur oxides4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 05Ambient standards for carbon monoxide4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 06Ambient standards for ozone4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 08Ambient standards for suspended sulfates4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 10Ambient standards for lead4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 12Incorporation by reference4/30/20249/11/202590 FR 43915, 9/11/2025 
Chapter 03. General Emission Standards.
Section 02Emission standards for particulate matter4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 03Emission standards for nitrogen oxides4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 04Emission standards for sulfur oxides4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 05Emission standards for carbon monoxide4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 06Emission standards for volatile organic compounds4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 09Incorporation by reference4/30/20249/11/202590 FR 43915, 9/11/2025 
Chapter 04. State Performance Standards for Specific Existing Sources.
Section 02Existing sulfuric acid production units4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 03Existing nitric acid manufacturing plants4/30/20249/11/202590 FR 43915, 9/11/2025 
Chapter 06. Permitting Requirements.
Section 02Permit requirements for construction, modification, and operation10/29/19998/27/200469 FR 44965, 7/28/04 
Section 04Prevention of significant deterioration12/20/201610/22/201883 FR 47565, 9/20/2018 
Section 13Nonattainment new source review permit requirements10/13/20157/5/20166/2/2016, 81 FR 35273 
Section 14Incorporation by reference2/5/201810/22/201883 FR 47565, 9/20/2018 
Chapter 07. Monitoring Regulations.
Section 02Continuous monitoring requirements for existing sources10/29/19998/27/200469 FR 44965, 7/28/04 
Chapter 08. Non-attainment Area Regulations.
Section 02Sweetwater County particulate matter regulations4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 03Conformity of general federal actions to state implementation plans4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 05Ozone nonattainment emission inventory rule4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 10Incorporation by reference4/30/20249/11/202590 FR 43915, 9/11/2025 
Chapter 09. Visibility Impairment/PM Fine Control.
Section 02Visibility10/29/19998/27/200469 FR 44965, 7/28/04 
Chapter 10. Smoke Management.
Section 02Open burning restrictions10/29/19998/27/200469 FR 44965, 7/28/04 
Section 03Wood waste burners10/29/19998/27/200469 FR 44965, 7/28/04 
Section 04Smoke management requirements4/5/20051/11/201377 FR 73926, 12/12/12 
Chapter 12. Emergency Controls.
Section 02Air pollution emergency episodes10/29/19998/27/200469 FR 44965, 7/28/04 
Chapter 13. Mobile Sources.
Section 02Motor vehicle pollution control10/29/19998/27/200469 FR 44965, 7/28/04 
Chapter 14. Emission Trading Program Regulations.
Section 2Western backstop sulfur dioxide trading program4/30/20249/11/202590 FR 43915, 9/11/2025 
Section 3Sulfur dioxide milestone inventory4/30/20249/11/202590 FR 43915, 9/11/2025 
App AWeb Chapter 14, Section 2 Monitoring Protocols4/30/20249/11/202590 FR 43915, 9/11/2025 
Chapter I. General Rules of Practice and Procedure.
Section 16Air Quality Division, State Implementation Plan4/21/20165/25/201782 FR 18994, 4/25/2017CAA section 128 Requirements.

[71 FR 64462, Nov. 2, 2006, as amended at 73 FR 26025, May 8, 2008; 73 FR 40752, July 16, 2008; 75 FR 19890, Apr. 16, 2010; 76 FR 44270, July 25, 2011; 77 FR 73933, Dec. 12, 2012; 78 FR 49690, Aug. 15, 2013; 78 FR 70000, Nov. 22, 2013; 78 FR 73448, Dec. 6, 2013; 79 FR 5219, Jan. 30, 2014; 79 FR 50843, Aug. 26, 2014; 79 FR 54912, Sept. 15, 2014; 79 FR 62861, Oct. 21, 2014; 80 FR 9201, Feb. 20, 2015; 80 FR 47859, Aug. 10, 2015; 80 FR 45609, July 31, 2015; 80 FR 68769, Nov. 6, 2015; 81 FR 35273, June 2, 2016; 81 FR 58399, Aug. 25, 2016; 81 FR 70364, Oct. 12, 2016; 82 FR 9154, Feb. 3, 2017]

Air Quality Implementation Plans

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Last updated on November 19, 2025
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