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EPA Approved Statutes and Regulations in the North Carolina SIP

About this website: This website does not necessarily represent the current version of the SIPs, TIPs, or FIPs.  The official SIPs, TIPs, and FIPs are contained in regulations promulgated in the Federal Register and codified in the U.S. Code of Federal Regulations (CFR).  While we make every effort to maintain the accuracy of the files accessible here, inconsistencies may occur.  Please contact us using the link below if you find any errors in these files.

Updated as of: May 27, 2026

EPA Contact: EPA Region 4: Weston Freund (404-562-8773)

EPA-Approved North Carolina Regulations

State citationTitle/subjectState effective dateEPA approval dateExplanation
Subchapter 02D   Air Pollution Control Requirements
Section .0100   Definitions and References
Rule .0101Definitions1/1/20187/17/2020, 85 FR 43461 
Rule .0103Copies of Referenced Federal Regulations1/1/20184/10/2019, 84 FR 14308 
Rule .0104Incorporation by Reference1/1/20184/10/2019, 84 FR 14308 
Rule .0105Mailing List1/1/20184/10/2019, 84 FR 14308 
Section .0200   Air Pollution Sources
Rule .0201Classification of Air Pollution Sources1/1/20184/10/2019, 84 FR 14308 
Rule .0202Registration of Air Pollution Sources1/1/20184/10/2019, 84 FR 14308 
Section .0300   Air Pollution Emergencies
Rule .0301Purpose2/1/19766/3/1986, 51 FR 19834 
Rule .0302Episode Criteria1/1/20184/10/2019, 84 FR 14308 
Rule .0303Emission Reduction Plans1/1/20184/10/2019, 84 FR 14308 
Rule .0304Preplanned Abatement Program1/1/20184/10/2019, 84 FR 14308 
Rule .0305Emission Reduction Plan—Alert Level1/1/20184/10/2019, 84 FR 14308 
Rule .0306Emission Reduction Plan—Warning Level1/1/20184/10/2019, 84 FR 14308 
Rule .0307Emission Reduction Plan—Emergency Level1/1/20184/10/2019, 84 FR 14308 
Section .0400   Ambient Air Quality Standards
Rule .0401Purpose1/1/20184/10/2019, 84 FR 14308 
Rule .0402Sulfur Dioxide1/1/20184/10/2019, 84 FR 14308 
Rule .0403Total Suspended Particulates11/1/202011/3/2023, 88 FR 75500 
Rule .0404Carbon Monoxide1/1/20184/10/2019, 84 FR 14308 
Rule .0405Ozone1/1/20182/14/2019, 84 FR 3991 
Rule .0407Nitrogen Dioxide1/1/20184/10/2019, 84 FR 14308 
Rule .0408Lead1/1/20184/10/2019, 84 FR 14308 
Rule .0409Particulate Matter1/1/20184/10/2019, 84 FR 14308 
Rule .0410PM2.5 Particulate Matter1/1/20184/10/2019, 84 FR 14308 
Section .0500 Emission Control Standards
Rule .0501Compliance with Emission Control Standards11/1/202011/3/2023, 88 FR 75500 
Rule .0502Purpose3/1/19817/26/1982, 47 FR 32118 
Rule .0503Particulates from Fuel Burning Indirect Heat Exchangers5/1/199910/22/2002, 67 FR 64989 
Rule .0504Particulates from Wood Burning Indirect Heat Exchangers11/1/202011/3/2023, 88 FR 75500 
Rule .0505Control of Particulates from Incinerators7/1/19872/29/1988, 53 FR 5974 
Rule .0506Particulates from Hot Mix Asphalt Plants11/1/202011/3/2023, 88 FR 75500Except that, in paragraph (e), the phrase "not covered" is replaced with the phrase "not covered elsewhere" from paragraph (e), with a state effective date of August 1, 2004.
Rule .0507Particulates from Chemical Fertilizer Manufacturing Plants11/1/202011/3/2023, 88 FR 75500 
Rule .0508Particulates from Pulp and Paper Mills11/1/202011/3/2023, 88 FR 75500 
Rule .0509Particulates from Mica or Feldspar Processing Plants11/1/202011/3/2023, 88 FR 75500 
Rule .0510Particulates from Sand, Gravel, or Crushed Stone Operations11/1/202011/3/2023, 88 FR 75500 
Rule .0511Particulates from Lightweight Aggregate11/1/202011/3/2023, 88 FR 75500 
Rule .0512Particulates from Wood Products Finishing Plants11/1/198412/19/1986, 51 FR 45468 
Rule .0513Particulates from Portland Cement Plants11/1/202011/3/2023, 88 FR 75500 
Rule .0514Particulates from Ferrous Jobbing Foundries11/1/202011/3/2023, 88 FR 75500 
Rule .0515Particulates from Miscellaneous Industrial Processes11/1/202011/3/2023, 88 FR 75500 
Rule .0516Sulfur Dioxide Emissions from Combustion Sources6/1/202310/2/2025, 90 FR 47610 
Rule .0517SO2 Emissions from Plants Producing Sulfuric Acid11/1/202010/25/2022, 87 FR 64382 
Rule .0519Control of Nitrogen Dioxide and Nitrogen Oxides11/1/202010/25/2022, 87 FR 64382 
Rule .0521Control of Visible Emissions1/1/200510/25/2005, 70 FR 61556Approving changes to Paragraphs (c) and (d) that reference new Paragraph (g). Also, approving Paragraph (g) excluding the following language: “excluding startups, shutdowns, maintenance periods when fuel is not being combusted, and malfunctions approved as such according to procedures approved under Rule .0535 of this Section.”
Rule .0522Control and Prohibition of Odorous Emissions2/1/19766/3/1986, 51 FR 19834 
Rule .0523Control of Conical Incinerators1/1/19859/9/1987, 52 FR 33933 
Rule .0527Emissions from Spodumene Ore Roasting11/1/198412/19/1986, 51 FR 45468 
Rule .0530Prevention of Significant Deterioration10/1/20201/5/2023, 88 FR 773Except for the incorporation by reference of 40 CFR 51.166(b)(2)(iii)(a), which is instead the incorporation of the March 15, 1996, version of that section as approved into the SIP on October 15, 1999. Except for the incorporation by reference of 40 CFR 51.166(i)(2), which is instead the incorporation of the July 1, 2014, version of that section as approved into the SIP on September 11, 2018. Except for the incorporation by reference of 40 CFR 51.166(b)(2)(v), 51.166(b)(3)(iii)(d), 51.166(b)(53)-(56), 51.166(i)(11), and 51.166(y).
Rule .0531Sources in Nonattainment Areas9/1/20139/14/2016, 81 FR 63107The version of Section .0531 in the SIP does not incorporate by reference the provisions amended in the Ethanol Rule (published in the Federal Register on May 1, 2007) that excludes facilities that produce ethanol through a natural fermentation process from the definition of “chemical process plants” at § 52.21(b)(1)(i)(a) and (b)(1)(iii)(t).
Rule .0532Sources Contributing to an Ambient Violation7/1/19942/1/1996, 61 FR 3584 
Rule .0533Stack Height11/1/202010/25/2022, 87 FR 64382 
Rule .0535Excess Emissions Reporting and Malfunctions7/1/19968/1/1997, 62 FR 41277 
Rule .0540Particulates from Fugitive Non-process Dust Emission Sources9/1/20198/9/2023, 88 FR 53798With the exception of paragraph (e)(1), which has a State effective date of August 1, 2007.
Rule .0542Control of Particulate Emissions from Cotton Ginning Operations11/1/20201/11/2022, 87 FR 1358 
Rule .0543Best Available Retrofit Technology11/1/20206/21/2022, 87 FR 36769 
Rule .0544Prevention of Significant Deterioration Requirements for Greenhouse Gases11/1/20201/5/2023, 88 FR 773Except for the Biomass Deferral Rule language contained in the second sentence of 40 CFR 51.166(b)(48)(ii)(a).
Section .0600   Air Contaminants; Monitoring, Reporting
Rule .0601Monitoring: Recordkeeping: Reporting11/1/20198/25/2021, 86 FR 47393 
Rule .0602Definitions11/1/20198/25/2021, 86 FR 47393 
Rule .0604Exceptions to Monitoring and Reporting Requirements11/1/20198/25/2021, 86 FR 47393 
Rule .0605General Recordkeeping and Reporting Requirements11/1/20198/25/2021, 86 FR 47393 
Rule .0606Sources Covered by Appendix P of 40 CFR part 5111/1/20198/25/2021, 86 FR 47393 
Rule .0607Large Wood and Wood-Fossil Fuel Combination Units11/1/20198/25/2021, 86 FR 47393 
Rule .0608Other Large Coal or Residual Oil Burners11/1/20198/25/2021, 86 FR 47393 
Rule .0609Monitoring Condition in Permit4/12/198410/4/1985, 50 FR 41501 
Rule .0610Federal Monitoring Requirements11/1/201910/7/2022, 87 FR 60895 
Rule .0611Monitoring Emissions from Other Sources4/1/19998/8/2002, 67 FR 51461 
Rule .0612Alternative Monitoring and Reporting Procedures11/1/201910/7/2022, 87 FR 60895 
Rule .0613Quality Assurance Program11/1/201910/7/2022, 87 FR 60895 
Rule .0614Compliance Assurance Monitoring4/1/19998/8/2002, 67 FR 51461 
Section .0900   Volatile Organic Compounds
Rule .0901Definitions11/1/20208/4/2023, 88 FR 51713 
Rule .0902Applicability11/1/20208/4/2023, 88 FR 51713Except for paragraph .0902(d)(2) and the reference to paragraph.0902(d)(2) found in .0902(c).
Rule .0903Recordkeeping: Reporting, Monitoring11/1/20208/4/2023, 88 FR 51713 
Rule .0905Petition for Alternative Controls11/8/198412/19/1986, 51 FR 45468 
Rule .0906Circumvention11/1/20208/4/2023, 88 FR 51713 
Rule .0908Equipment Modification Compliance Schedules11/8/198412/19/1986, 51 FR 45468 
Rule .0909Compliance Schedules11/1/20208/4/2023, 88 FR 51713 
Rule .0912General Provisions on Test Methods and Procedures11/1/20208/4/2023, 88 FR 51713 
Rule .0918Can Coating11/1/20208/4/2023, 88 FR 51713 
Rule .0919Coil Coating11/1/20208/4/2023, 88 FR 51713 
Rule .0922Metal Furniture Coating11/1/20208/4/2023, 88 FR 51713 
Rule .0923Surface Coating of Large Appliance Parts11/1/20208/4/2023, 88 FR 51713 
Rule .0924Magnet Wire Coating11/1/20208/4/2023, 88 FR 51713 
Rule .0925Petroleum Liquid Storage in Fixed Roof Tanks11/1/20208/4/2023, 88 FR 51713 
Rule .0926Bulk Gasoline Plants11/1/20208/9/2023, 88 FR 53795Except for references to Rule 02D .0960 found in paragraph .0926(n).
Rule .0927Bulk Gasoline Terminals11/1/20208/9/2023, 88 FR 53795Except for references to Rule 02D .0960 found in paragraph .0927(k).
Rule .0928Gasoline Service Stations Stage I11/1/20208/4/2023, 88 FR 51713 
Rule .0930Solvent Metal Cleaning11/1/20208/4/2023, 88 FR 51713 
Rule .0931Cutback Asphalt11/1/20208/4/2023, 88 FR 51713 
Rule .0932Gasoline Truck Tanks and Vapor Collection Systems10/1/20208/9/2023, 88 FR 53795 
Rule .0933Petroleum Liquid Storage in External Floating Roof Tanks11/1/20208/4/2023, 88 FR 51713 
Rule .0935Factory Surface Coating of Flat Wood Paneling11/1/20208/4/2023, 88 FR 51713 
Rule .0937Manufacture of Pneumatic Rubber Tires11/1/20208/4/2023, 88 FR 51713 
Rule .0943Synthetic Organic Chemical and Polymer Manufacturing11/1/20208/4/2023, 88 FR 51713 
Rule .0944Manufacture of Polyethylene, Polypropylene, and Polystyrene11/1/20208/4/2023, 88 FR 51713 
Rule .0945Petroleum Dry Cleaning11/1/20208/4/2023, 88 FR 51713 
Rule .0947Manufacture of Synthesized Pharmaceutical Products11/1/20208/4/2023, 88 FR 51713 
Rule .0948VOC Emissions from Transfer Operations11/1/20208/4/2023, 88 FR 51713 
Rule .0949Storage of Miscellaneous Volatile Organic Compounds11/1/20208/4/2023, 88 FR 51713 
Rule .0951RACT for Sources of Volatile Organic Compounds11/1/20208/4/2023, 88 FR 51713 
Rule .0952Petitions for Alternative Controls for RACT9/18/20099/23/2013, 78 FR 58186 
Rule .0955Thread Bonding Manufacturing11/1/20208/4/2023, 88 FR 51713 
Rule .0956Glass Christmas Ornament Manufacturing11/1/20208/4/2023, 88 FR 51713 
Rule .0957Commercial Bakeries11/1/20208/4/2023, 88 FR 51713 
Rule .0958Work Practices for Sources of Volatile Organic Compounds7/1/20008/27/2001, 66 FR 34117 
Rule .0961Offset Lithographic Printing and Letterpress Printing11/1/20208/4/2023, 88 FR 51713 
Rule.0962Industrial Cleaning Solvents11/1/20208/4/2023, 88 FR 51713 
Rule .0963Fiberglass Boat Manufacturing11/1/20208/4/2023, 88 FR 51713 
Rule .0964Miscellaneous Industrial Adhesives11/1/20208/4/2023, 88 FR 51713 
Rule .0965Flexible Package Printing11/1/20208/4/2023, 88 FR 51713 
Rule .0966Paper Film and Foil Coatings11/1/20208/4/2023, 88 FR 51713 
Rule .0967Miscellaneous Metal and Plastic Parts Coatings11/1/20208/4/2023, 88 FR 51713 
Rule .0968Automobile and Light Duty Truck Assembly Coatings11/1/20208/4/2023, 88 FR 51713 
Section .1000   Motor Vehicle Emissions Control Standards
Rule .1001Purpose7/1/20189/11/2019, 84 FR 47889 
Rule .1002Applicability7/1/20189/11/2019, 84 FR 47889 
Rule .1003Definitions7/1/20189/11/2019, 84 FR 47889 
Rule .1005On-Board Diagnostic Standards7/1/20189/11/2019, 84 FR 47889 
Section .1400   Nitrogen Oxides
Rule .1401Definitions10/1/20201/13/2023, 88 FR 2243 
Rule .1402Applicability10/1/20201/13/2023, 88 FR 2243 
Rule .1403Compliance Schedules10/1/20201/13/2023, 88 FR 2243 
Rule .1404Recordkeeping: Reporting: Monitoring10/1/20201/13/2023, 88 FR 2243 
Rule .1407Boilers and Indirect Process Heaters10/1/20201/13/2023, 88 FR 2243 
Rule .1408Stationary Combustion Turbines10/1/20201/13/2023, 88 FR 2243 
Rule .1409Stationary Internal Combustion Turbines10/1/20201/13/2023, 88 FR 2243 
Rule .1410Emissions Averaging10/1/20201/13/2023, 88 FR 2243 
Rule .1411Seasonal Fuel Switching10/1/20201/13/2023, 88 FR 2243 
Rule .1412Petition for Alternative Limitations10/1/20201/13/2023, 88 FR 2243 
Rule .1415Test Methods and Procedures10/1/20201/13/2023, 88 FR 2243 
Rule .1418New Electric Generating Units, Large Boilers, and Large Internal Combustion Engines10/1/20201/13/2023, 88 FR 2243 
Rule .1423Large Internal Combustion Engines7/15/20024/28/2020, 85 FR 23700 
Section .1900   Open Burning
Rule .1901Purpose, Scope, and Impermissible Open Burning7/1/20077/18/2017, 82 FR 32767 
Rule .1902Definitions7/1/20077/18/2017, 82 FR 32767 
Rule .1903Open Burning Without an Air Quality Permit7/1/20077/18/2017, 82 FR 32767 
Rule .1904Air Curtain Burners7/1/19968/1/1997, 62 FR 41277 
Rule .1907Multiple Violations Arising from a Single Episode7/1/20077/16/2019, 84 FR 33850 
Section .2000   Transportation Conformity
Rule .2001Purpose, Scope and Applicability1/1/20189/30/2019, 84 FR 51416 
Rule .2002Definitions1/1/20189/30/2019, 84 FR 51416 
Rule .2003Transportation Conformity Determination1/1/20189/30/2019, 84 FR 51416 
Rule .2004Determining Transportation Related Emissions4/1/199912/27/2002, 67 FR 78983 
Rule .2005Memorandum of Agreement1/1/20189/30/2019, 84 FR 51416 
Section .2400   Clean Air Interstate Rules
Rule. 2401Purpose and Applicability5/1/200811/30/2009, 74 FR 62496 
Rule .2402Definitions5/1/200811/30/2009, 74 FR 62496 
Rule 2403Nitrogen Oxide Emissions5/1/200811/30/2009, 74 FR 62496 
Rule .2404Sulfur Dioxide5/1/200811/30/2009, 74 FR 62496 
Rule .2405Nitrogen Oxide Emissions During Ozone Season5/1/200811/30/2009, 74 FR 62496 
Rule .2406Permitting7/1/200611/30/2009, 74 FR 62496 
Rule .2407Monitoring, Reporting, and Recordkeeping5/1/200811/30/2009, 74 FR 62496 
Rule .2408Trading Program and Banking7/1/200611/30/2009, 74 FR 62496 
Rule .2409Designated Representative5/1/200811/30/2009, 74 FR 62496 
Rule .2410Computation of Time7/1/200611/30/2009, 74 FR 62496 
Rule .2411Opt-In Provisions7/1/200611/30/2009, 74 FR 62496 
Rule .2412New Unit Growth5/1/200811/30/2009, 74 FR 62496 
Rule .2413Periodic Review and Reallocations7/1/200611/30/2009, 74 FR 62496 
Section .2600   Source Testing
Rule .2601Purpose and Scope6/1/20085/9/2013, 78 FR 27067 
Rule .2602General Provisions on Test Methods6/1/20085/9/2013, 78 FR 27067 
Rule .2603Testing Protocol11/1/201910/7/2022, 87 FR 60895 
Rule .2604Number of Test Points11/1/201910/7/2022, 87 FR 60895 
Rule .2605Velocity and Volume Flow Rate11/1/201910/7/2022, 87 FR 60895 
Rule .2606Molecular Weight11/1/201910/7/2022, 87 FR 60895 
Rule .2607Determination of Moisture Content11/1/201910/7/2022, 87 FR 60895 
Rule .2608Number of Runs and Compliance Determination11/1/201910/7/2022, 87 FR 60895 
Rule .2609Particulate Testing Methods6/1/20084/9/2019, 84 FR 14019 
Rule .2610Opacity11/1/201910/7/2022, 87 FR 60895 
Rule .2611Sulfur Dioxide Testing Methods6/1/20084/9/2019, 84 FR 14019 
Rule .2612Nitrogen Oxide Testing Methods11/1/201910/7/2022, 87 FR 60895 
Rule .2613Volatile Organic Compound Testing Methods11/1/201910/7/2022, 87 FR 60895 
Rule .2614Determination of VOC Emission Control System11/1/201910/7/2022, 87 FR 60895 
Rule .2615Determination of Leak Tightness and Vapor Leaks10/1/20208/9/2023, 88 FR 53795 
Rule .2617Total Reduced Sulfur6/1/20084/9/2019, 84 FR 14019 
Rule .2621Determination of Fuel Heat Content Using F-Factor6/1/20085/9/2013, 78 FR 27067 
Subchapter 02Q   Air Quality Permits
Section .0100   General Provisions
Rule .0101Required Air Quality Permits4/1/20189/19/2024, 89 FR 76737Except for the phrase “With the exception allowed by G.S. 143-215.108A” in paragraph (b).
Rule .0102Activities Exempted from Permit Requirements1/1/20058/22/2008, 73 FR 49613 
Rule .0103Definitions4/1/20189/19/2024, 90 FR 76737Except for the phrase “pursuant to G.S. 143-215.108” in subparagraph (9)(d).
Rule .0104Where to Obtain and File Permit Applications4/1/20187/17/2020, 85 FR 43461 
Rule .0105Copies of Referenced Documents4/1/20187/17/2020, 85 FR 43461 
Rule .0106Incorporation by Reference4/1/20187/17/2020, 85 FR 43461 
Rule .0107Confidential Information4/1/20187/17/2020, 85 FR 43461 
Rule .0108Delegation of Authority4/1/20187/17/2020, 85 FR 43461 
Rule .0109Compliance Schedule for Previously Exempted Activities4/1/20187/17/2020, 85 FR 43461 
Rule .0110Retention of Permit at Permitted Facility4/1/20187/17/2020, 85 FR 43461 
Rule .0111Applicability Determinations4/1/20187/17/2020, 85 FR 43461 
Section .0200   Permit Fees
Rule .0207Annual Emissions Reporting4/1/20183/1/2021, 86 FR 11867 
Section .0300   Construction and Operating Permits
Rule .0301Applicability4/1/20189/19/2024, 89 FR 76737Except for the phrase “or as allowed pursuant to G.S. 143-215.108A” in paragraph (a).
Rule .0303Definitions4/1/20183/1/2021, 86 FR 11875 
Rule.0304Applications4/1/20183/1/2021, 86 FR 11875 
Rule .0305Application Submittal Content4/1/20183/1/2021, 86 FR 11875 
Rule .0306Permits Requiring Public Participation4/1/20183/1/2021, 86 FR 11875 
Rule .0307Public Participation Procedures4/1/20183/1/2021, 86 FR 11875 
Rule .0308Final Action on Permit Applications4/1/20183/1/2021, 86 FR 11875 
Rule .0309Termination, Modification and Revocation of Permits4/1/20183/1/2021, 86 FR 11875 
Rule .0310Permitting of Numerous Similar Facilities4/1/20183/1/2021, 86 FR 11875 
Rule .0311Permitting of Facilities at Multiple Temporary Sites4/1/20183/1/2021, 86 FR 11875 
Rule .0312Application Processing Schedule4/1/20183/1/2021, 86 FR 11875 
Rule .0313Expedited Application Processing Schedule4/1/20183/1/2021, 86 FR 11875 
Rule .0314General Permitting Requirements4/1/20183/1/2021, 86 FR 11875 
Rule .0315Synthetic Minor Facilities4/1/20183/1/2021, 86 FR 11875 
Rule .0316Administrative Permit Amendments4/1/20183/1/2021, 86 FR 11875 
Rule .0317Avoidance Conditions4/1/20183/1/2021, 86 FR 11875 
Section .0800   Exclusionary Rules
Rule .0801Purpose and Scope4/1/201810/18/2022, 87 FR 62990 
Rule .0802Gasoline Servicing Stations and Dispensing Facilities4/1/201810/18/2022, 87 FR 62990 
Rule .0803Coating, Solvent Cleaning, Graphic Arts Operations4/1/201810/18/2022, 87 FR 62990 
Rule .0804Dry Cleaning Facilities4/1/201810/18/2022, 87 FR 62990 
Rule .0805Grain Elevators4/1/201810/18/2022, 87 FR 62990 
Rule .0806Cotton Gins4/1/201810/18/2022, 87 FR 62990 
Rule .0807Emergency Generators4/1/201810/18/2022, 87 FR 62990 
Rule .0808Peak Shaving Generators11/10/20056/18/2017, 82 FR 32767 
Subchapter 2Q Air Quality Permit Requirements: Section NCAC 2Q.900: Permit Exemptions (pdf) (486.01 KB, 10/01/23)
Section defines categories of facilities that are exempted from needing a permit under Title V of this Subchapter by defining their potential emissions to be less than given standards - NCAC 2Q.900: Permit Exemptions as of 10/01/23
Rule .0901Purpose and Scope1/1/20059/29/2017, 82 FR 45473 
Rule .0902Portable Crushers1/1/20059/29/2017, 82 FR 45473 

[64 FR 27467, May 20, 1999]

Editorial Note: For Federal Register citations affecting §52.1770, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.

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