{"data":{"id":"us/40-cfr-52.1270","jurisdiction":"us","citation":"40 CFR 52.1270","heading":"Identification of plan.","body":"(a) Purpose and scope. This section sets forth the applicable State implementation plan for Mississippi under section 110 of the Clean Air Act, 42 U.S.C. 7401-7671q and 40 CFR part 51 to meet national ambient air quality standards.\n(b) Incorporation by reference. (1) Material listed in paragraph (c) of this section with an EPA approval date prior to December 19, 2022, for Mississippi 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 paragraph (c) of this section with EPA approval dates after December 19, 2022, for Mississippi will be incorporated by reference in the next update to the SIP compilation.\n(2) EPA Region 4 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 the dates referenced in paragraph (b)(1) of this section.\n(3) Copies of the materials incorporated by reference may be inspected at the Region 4 EPA Office at 61 Forsyth Street SW, Atlanta, GA 30303. To obtain the material, please call (404) 562-9022. You may inspect the material with an EPA approval date prior to December 19, 2022, for Mississippi at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA email fedreg.legal@nara.gov or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html.\n(c) EPA-Approved Mississippi laws and regulations.\nTable 1 to Paragraph (c)—EPA-Approved Mississippi Laws and Regulations\nState citation Title/subject State effective date EPA approval date Explanation\n11 MAC Part 1—Chapter 5 Mississippi Environmental Quality Permit Board: Regulations Regarding Administrative Procedures Pursuant to the Mississippi Administrative Procedures Act\nRule 5.1 Description of Mississippi Environmental Quality Permit Board 5/11/2018 10/4/2018, 83 FR 50014\n11 MAC Part 2—Chapter 1 Air Emission Regulations for the Prevention, Abatement, and Control of Air Contaminants\nRule 1.1 General 6/25/2018 10/4/2018, 83 FR 50014 Except paragraphs (C)(1) and (2), which EPA has not approved into the SIP.\nRule 1.2 Definitions 7/25/2013 2/21/2020, 85 FR 10070 Except the definition of “Air Quality Action Day,” which EPA has not approved into the SIP.\nRule 1.3 Specific Criteria for Sources of Particulate Matter 7/25/2013 2/21/2020, 85 FR 10070 Except paragraph (G)(4), which is state effective February 9, 2009, and paragraph (G)(5), which is not approved into the SIP.\nRule 1.4 Specific Criteria for Sources of Sulfur Compounds 7/25/2013 2/21/2020, 85 FR 10070\nRule 1.5 Specific Criteria for Sources of Chemical Emissions 7/25/2013 2/21/2020, 85 FR 10070\nRule 1.6 New Sources 7/25/2013 2/21/2020, 85 FR 10070 Except paragraphs (2) and (3), which EPA has not approved into the SIP.\nRule 1.7 Exceptions 7/25/2013 2/21/2020, 85 FR 10070\nRule 1.9 Stack Height Considerations 7/25/2013 2/21/2020, 85 FR 10070\nRule 1.10 Provisions for Upsets, Startups, and Shutdowns 12/10/2016 11/18/2022, 87 FR 69177 Except for Rule 1.10.A and 1.10.B(3).\nRule 1.11 Severability 7/25/2013 2/21/2020, 85 FR 10070\nRule 1.14 Provision for the Clean Air Interstate Rule 7/25/2013 2/21/2020, 85 FR 10070\n11 MAC Part 2—Chapter 2 Permit Regulations for the Construction and/or Operation of Air Emissions Equipment\nRule 2.1 General Requirements 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.2 General Standards Applicable to All Permits 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.3 Application for Permit To Construct and State Permit To Operate New Stationary Source 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.4 Public Participation and Public Availability of Information 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.5 Application Review 3/24/2024 10/31/2024, 89 FR 86751 Except for Rule 2.5(A) and 2.5(C) through (E) which have a state effective date of 7/25/2013.\nRule 2.6 Compliance Testing 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.7 Emissions Evaluation Report 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.8 Procedures for Renewal of State Permit To Operate 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.9 Reporting and Recordkeeping 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.10 Emission Reduction Schedule 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.11 General Permits 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.12 Multi-Media Permits 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.13 Exclusions 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.14 CAFOs 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.15 Options 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.16 Permit Transfer 7/25/2013 2/21/2020, 85 FR 10070\nRule 2.17 Severability 7/25/2013 2/21/2020, 85 FR 10070\n11 MAC Part 2—Chapter 3 Regulations for the Prevention of Air Pollution Emergency Episodes\nRule 3.1 General 7/25/2013 2/21/2020, 85 FR 10070\nRule 3.2 Definitions 7/25/2013 2/21/2020, 85 FR 10070\nRule 3.3 Episode Criteria 7/25/2013 2/21/2020, 85 FR 10070\nRule 3.4 Emission Control Action Programs 7/25/2013 2/21/2020, 85 FR 10070\nRule 3.5 Emergency Orders 7/25/2013 2/21/2020, 85 FR 10070 Except the removal of language from the “Emergency” level for coal or oil-fired process steam generating facilities under Rule 3.5, Table 1, Section 2, which is state effective June 3, 1988.\n11 MAC Part 2—Chapter 5 Regulations for the Prevention of Significant Deterioration of Air Quality\nRule 5.1 Purpose of this regulation 3/24/2024 10/31/2024, 89 FR 86751\nRule 5.2 Adoption of Federal Rules by Reference 3/24/2024 10/31/2024, 89 FR 86751 The version of Rule 5.2 in the SIP does not incorporate the provisions at § 52.21(b)(2)(v) and (b)(3)(iii)(c) that were stayed indefinitely by the Fugitive Emissions Interim Rule (published in the Federal Register March 30, 2011).\nRule 5.3 Definition of term “Administrator” 3/24/2024 10/31/2024, 89 FR 86751\nRule 5.4 Adoption of Federal Rules for Exclusions from Increment Consumption 3/24/2024 10/30/2024, 89 FR 86751\nRule 5.5 Transmittal of Permit Applications to EPA Administrator 7/25/2013 10/31/2024, 89 FR 86751\nRule 5.6 Applicability 3/24/2024 10/31/2024, 89 FR 86751\nRule 5.7 Public Participation 3/24/2024 10/31/2024, 89 FR 86751\n11 MAC Part 2-11 Regulations for Ambient Air Quality Nonattainment Areas\nRule 11.1 General 9/26/2015 1/12/2016, 81 FR 1321\nRule 11.2 Definitions 9/26/2015 1/12/2016, 81 FR 1321\nRule 11.3 Emissions Statement 9/26/2015 1/12/2016, 81 FR 1321\nMississippi State Constitution\nArticle 4 Section 109 Interest of Public Officers in Contracts 9/27/2012 4/8/2013, 78 FR 20795\nMississippi Code\nSection 25-4-25 Persons required to file statement of economic interest 9/27/2012 4/8/2013, 78 FR 20795\nSection 25-4-27 Contents of statement of economic interest 9/27/2012 4/8/2013, 78 FR 20795\nSection 25-4-29 Filing dates for statements 9/27/2012 4/8/2013, 78 FR 20795\nSection 25-4-101 Declaration of public policy 9/27/2012 4/8/2013, 78 FR 20795\nSection 25-4-103 Definitions 9/27/2012 4/8/2013, 78 FR 20795\nSection 25-4-105 Certain actions, activities and business relationships prohibited or authorized; contracts in violation of section voidable; penalties 9/27/2012 4/8/2013, 78 FR 20795\nSection 49-2-5 Commission on Environmental Quality 7/1/2016 10/4/2018, 83 FR 50014\n(d) EPA approved Mississippi source-specific requirements.\nEPA Approved Mississippi Source-Specific Requirements\nName of source Permit number State effective date EPA approval date Explanation\nNone\n(e) EPA approved Mississippi non-regulatory provisions.\nEPA Approved Mississippi Non-Regulatory Provisions\nName of non-regulatory SIP provision Applicable geographic or nonattainment area State submittal date/effective date EPA approval date Explanation\n110(a)(1) and (2) Infrastructure Requirements for the 1997 8-Hour Ozone National Ambient Air Quality Standards Mississippi 12/7/2007 7/13/2011, 76 FR 41123 For the 1997 8-hour ozone NAAQS.\nRegional Haze Plan Statewide 9/22/2008 6/27/2012, 77 FR 38191\nRegional Haze Plan Update—E. I. Dupont Reasonable Progress and Mississippi Phosphates BART Determinations Statewide 5/9/2011 6/27/2012, 77 FR 38191\n110(a)(1) and (2) Infrastructure Requirements for 1997 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 12/7/2007 10/9/2012, 77 FR 61276 With the exception of sections 110(a)(2)(D)(i), 110(a)(2)(E)(ii) and 110(a)(2)(G).\n110(a)(1) and (2) Infrastructure Requirements for 2006 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 10/6/2009 10/9/2012, 77 FR 61276 With the exception of sections 110(a)(2)(D)(i), 110(a)(2)(E)(ii) and 110(a)(2)(G).\n110(a)(2)(G) Infrastructure Requirement for the 1997 and 2006 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 7/26/2012 10/9/2012, 77 FR 61279\n110(a)(2)(D)(i)(I) Infrastructure Requirements for the 2006 24-hour PM2.5 NAAQS Mississippi 10/6/2009 10/11/2012, 77 FR 61727 EPA partially disapproved this SIP submission to the extent that it relied on the Clean Air Interstate Rule to meet the 110(a)(2)(D)(i)(I) requirements for the 2006 24-hour PM2.5 NAAQS.\n110(a)(2)(E)(ii) Infrastructure Requirement for the 1997 and 2006 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 10/11/2012 4/8/2013, 78 FR 20795 EPA disapproved the State's 110(a)(2)(E)(ii) as it relates to section 128(a)(2), the significant portion of income requirement.\n110(a)(1) and (2) Infrastructure Requirements for 1997 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 12/7/2007 4/12/2013, 78 FR 21845 Addressing element 110(a)(2)(D)(i)(II) prong 3 only\n110(a)(1) and (2) Infrastructure Requirements for 2006 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 10/6/2009 4/12/2013, 78 FR 21845 Addressing element 110(a)(2)(D)(i)(II) prong 3 only\nTransportation Conformity Interagency Consultation And General Provisions DeSoto County portion of Memphis, TN-AR-MS 2008 8-hour Ozone Nonattainment Area 5/31/2013 11/13/2013, 78 FR 67955\n110(a)(1) and (2) Infrastructure Requirements for 1997 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 12/7/2007 5/7/2014, 79 FR 26148 Addressing prong 4 of section 110(a)(2)(D)(i) only.\n110(a)(1) and (2) Infrastructure Requirements for 2006 Fine Particulate Matter National Ambient Air Quality Standards Mississippi 10/6/2009 5/7/2014, 79 FR 26148 Addressing prong 4 of section 110(a)(2)(D)(i) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 8-Hour Ozone National Ambient Air Quality Standards Mississippi 7/26/2012 3/2/2015, 80 FR 11133 With the exception of sections: 110(a)(2)(C) and (J) concerning PSD permitting requirements; 110(a)(2)(D)(i)(I) and (II) (prongs 1 through 4) concerning interstate transport requirements; 110(a)(2)(E)(ii) concerning state board majority requirements respecting significant portion of income; and 110(a)(2)(J) concerning visibility requirements.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 Lead NAAQS Mississippi 11/17/2011 3/18/2015, 80 FR 14023 Addressing the PSD permitting requirements of sections 110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong 3) and 110(a)(2)(J) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 Ozone NAAQS Mississippi 5/29/2012 and amended on 7/26/2012 3/18/2015, 80 FR 14203 Addressing the PSD permitting requirements of sections 110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong 3) and 110(a)(2)(J) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2010 NO2 NAAQS Mississippi 2/28/2013 3/18/2015, 80 FR 14023 Addressing the PSD permitting requirements of sections 110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong 3) and 110(a)(2)(J) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 Lead National Ambient Air Quality Standards 110(a)(2)(E)(ii) Infrastructure Requirement for 2008 Lead National Ambient Air Quality Standards 11/4/2011 3/30/2015, 80 FR 16568 With the exception of provisions pertaining to PSD permitting requirements in sections 110(a)(2)(C), prong 3 of D(i) and (J) and the majority of requirements respecting significant portion of income of section 110(a)(2)(E)(ii) (related to section 128(a)(2)).\n2011 Base Year Emissions Inventory for the Mississippi portion of the Memphis, TN-MS-AR 2008 Ozone NAAQS Nonattainment Area DeSoto County portion of Memphis, TN-AR-MS 2008 8-hour Ozone Nonattainment Area 1/14/2015 7/02/2015, 80 FR 37988\n110(a)(1) and (2) Infrastructure Requirements for the 2008 Ozone NAAQS Mississippi 7/26/2012 8/12/2015, 80 FR 48258 Addressing the visibility requirements of 110(a)(2)(J) only.\n2008 8-hour ozone Maintenance Plan for the DeSoto County portion of Memphis, TN-AR-MS Nonattainment Area DeSoto County portion of Memphis, TN-AR-MS Nonattainment Area 12/2/2015 4/8/2016, 81 FR 20545\n110(a)(1) and (2) Infrastructure Requirements for the 2010 1-hour NO2 National Ambient Air Quality Standard Mississippi 2/28/2013 9/16/2016, 81 FR 67307 With the exception of sections: 110(a)(2)(C) and (J) concerning PSD permitting requirements; 110(a)(2)(D)(i)(I) and (II) (prongs 1 through 4) concerning interstate transport requirements and the state board majority requirements respecting significant portion of income of section 110(a)(2)(E)(ii).\n110(a)(1) and (2) Infrastructure Requirements for the 2010 1-hour SO2 NAAQS Mississippi 6/20/2013 9/30/2016, 81 FR 67178 With the exception of the interstate transport requirements of section 110(a)(2)(D)(i)(I) and (II) (prongs 1, 2, and 4) and the state board majority requirements respecting significant portion of income of section 110(a)(2)(E)(ii).\n110(a)(1) and (2) Infrastructure Requirements for the 2012 Annual PM 2.5 NAAQS Mississippi 12/11/2015 12/12/2016, 81 FR 89393 With the exception of sections: 110(a)(2)(C) and (J) concerning PSD permitting requirements; 110(a)(2)(D)(i)(I) and (II) (prongs 1 through 4) concerning interstate transport requirements and the state board majority requirements respecting significant portion of income of section 110(a)(2)(E)(ii).\nGood Neighbor Provisions (Section 110(a)(2)(D)(i)(I) for the 2010 1-hour NO2 NAAQS Mississippi 5/23/2016 12/22/16, 81 FR 93824\n110(a)(1) and (2) Infrastructure Requirements for the 2012 Annual PM2.5 NAAQS Mississippi 12/8/2015 9/25/2018, 83 FR 48387 Addressing Prongs 1 and 2 of section 110(a)(2)(D)(i)(I) only.\n110(a)(1) and (2) Infrastructure Requirements for the 1997 Annual PM2.5 NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2006 24-hour PM2.5 NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2012 24-hour PM2.5 NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 Lead NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2008 8-hour Ozone NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2010 NO2 NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2010 SO2 NAAQS Mississippi 6/25/2018 10/4/2018, 83 FR 50014 Addressing the state board requirements of sections 128 and 110(a)(2)(E)(ii) only.\n110(a)(1) and (2) Infrastructure Requirements for the 2012 Annual PM2.5 NAAQS Mississippi 12/11/2015 12/18/2018, 83 FR 64746 Addressing the PSD permitting requirements of sections 110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong 3) and 110(a)(2)(J) only\nRegional Haze Progress Report Mississippi 10/4/2018 10/6/2021, 86 FR 55501\nBART SIP Mississippi 8/13/2020 10/6/2021, 86 FR 55501\n110(a)(1) and (2) Infrastructure Requirements for the 2015 8-hour ozone NAAQS Mississippi 1/25/2021 9/22/2022, 87 FR 57832 With the exception of the visibility provision of section 110(a)(2)(D)(i)(II) (prong 4), the PSD provisions related to major sources under sections 110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong 3), and 110(a)(2)(J), and the modeling provision of 110(a)(2)(K).\n110(a)(1) and (2) Infrastructure Requirements for the 2015 8-hour Ozone NAAQS Mississippi 1/25/2021 3/1/2023, 88 FR 12833 Addressing and conditionally approving the PSD elements of sections 110(a)(2)(C), (D)(i)(II), and J, and section 110(a)(2)(K) only.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS","Subpart Z—Mississippi"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"f9ba3a9e5004e95481dfdf03370e43cabb52954f560776d0780ad097db40bfe7","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-52.1241","next":"us/40-cfr-52.1271"},"notice":"GroundRules: Original legal text. Not legal advice."}