Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Air Quality Implementation Plans

EPA-Approved Ventura County Air District Regulations in the California SIP

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

The following document and tables contain the EPA approved rules and regulations for the Ventura County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes in the official tables codified in the Code of Federal Regulations. To find the status of SIP submittals, visit SIP Status Reports.

On this page:
  • Compiled Rules and Regulations
  • Tables of Rules and Regulations
    • Regulation I - General
    • Regulation II - Permits
    • Regulation IV - Prohibitions
    • Regulation V - Orchard Heaters
    • Regulation VI – Source Testing and Stack Monitoring
    • Regulation VIII - Emergency Action
    • Regulation IX – Public Records
    • Regulation XI – Conformity

Compiled Rules and Regulations

Free viewers and readers are available to access documents on our website. If you encounter issues with assistive technology, please contact us.

  • EPA Approved and Compiled Rules and Regulations: Ventura County APCD (pdf) (10.9 MB, August 2024)
    EPA approved and compiled rules and regulations of the Ventura County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).

Tables of Rules and Regulations

Regulation I – General

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
1TitleJuly 2, 1968September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
2DefinitionsApril 9, 2019November 12, 2020, 85 FR 71846 Submitted on August 19, 2019. See 40 CFR 52.220(c)(542)(i)(B)(1).
4Rules SupplementalMarch 9, 1976August 15, 1977, 42 FR 41121 Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
5Effective DateApril 13, 2004May 19, 2014, 79 FR 28612Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(4).
6SeverabilityNovember 21, 1978June 18, 1982, 47 FR 26388Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).
7Zone BoundariesJune 14, 1977March 20, 1979, 44 FR 16912Submitted on June 22, 1978. See 40 CFR 52.220(c)(44)(iii)(A).

Regulation II – Permits

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
10Permits RequiredApril 13, 2004December 3, 2019, 84 FR 66074Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(5).
11Definitions for Regulation II March 14, 2006October 24, 2008, 73 FR 63382Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(1).
12Applications for PermitsJune 13, 1995December 7, 2000, 65 FR 76567Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
13Action on Applications for an Authority to ConstructJune 13, 1995December 7, 2000, 65 FR 76567Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
14Action on Applications for a Permit to OperateJune 13, 1995December 7, 2000, 65 FR 76567Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
15Standards for Permit IssuanceJune 13, 1995December 7, 2000, 65 FR 76567Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
15.1Sampling and Testing FacilitiesOctober 12, 1993December 7, 2000, 65 FR 76567Submitted on March 29, 1994. See 40 CFR 52.220(c)(196)(i)(B)(2).
16BACT CertificationJune 13, 1995December 7, 2000, 65 FR 76567Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
19Posting of PermitsMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
20Transfer of PermitMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
23Exemptions from PermitNovember 12, 2013July 14, 2015, 80 FR 40909Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(3).
24Source Recordkeeping, Reporting and Emission StatementsSeptember 15, 1992December 7, 2000, 65 FR 76567Submitted on November 12, 1992. See 40 CFR 52.220(c)(190)(i)(A)(3).
26New Source Review - GeneralMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.1New Source Review - DefinitionsNovember 14, 2006January 11, 2010, 75 FR 1282Submitted on May 8, 2007. See 40 CFR 52.220(c)(350)(i)(E)(1).
26.2New Source Review - RequirementsMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.3New Source Review - ExemptionsMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.4New Source Review - Emission BankingMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.5New Source Review - Essential Public Service BankMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.6New Source Review - CalculationsMarch 14, 2006January 11, 2010, 75 FR 1282Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.7New Source Review – NotificationDecember 22, 1992December 7, 2000, 65 FR 76567Submitted on May 13, 1993. See 40 CFR 52.220(c)(193)(i)(E)(1).
26.8New Source Review – Permit to OperateOctober 22, 1991December 7, 2000, 65 FR 76567Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(4).
26.9New Source Review – Power PlantsOctober 22, 1991December 7, 2000, 65 FR 76567Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(4).
26.11New Source Review – ERC Evaluation at Time of UseMay 14, 2002February 28, 2003, 68 FR 9561Submitted on May 20, 2002. See 40 CFR 52.220(c)(305)(i)(A)(1).
26.13New Source Review — Prevention of Significant Deterioration (PSD)November 10, 2015March 10, 2017, 82 FR 13243Submitted on March 11, 2016. See 40 CFR 52.220(c)(474)(i)(D)(1).
28Revocation of PermitsMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
29Conditions on PermitsMarch 14, 2006October 24, 2008, 73 FR 63382Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(1).
30Permit RenewalMay 30, 1989December 7, 2000, 65 FR 76567Submitted on March 26, 1990. See 40 CFR 52.220(c)(179)(i)(D)(2).
31Public Disclosure of DataJanuary 29, 1974August 15, 1977, 42 FR 41121 Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
34Acid Deposition ControlMarch 14, 1995May 20, 2004, 69 FR 29074Submitted on May 24, 1995. See 40 CFR 52.220(c)(220)(i)(E)(1).

Regulation IV – Prohibitions

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
50OpacityApril 13, 2004August 9, 2005, 70 FR 46090Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
52Particulate Matter - Concentration (Grain Loading)April 13, 2004August 9, 2005, 70 FR 46090Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
53Particulate Matter – Process WeightApril 13, 2004August 9, 2005, 70 FR 46090Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
54Sulfur CompoundsJanuary 14, 2014January 20, 2015, 80 FR 2609Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(1).
56Open BurningNovember 11, 2003February 22, 2005, 70 FR 8516Submitted on January 15, 2004. See 40 CFR 52.220(c)(328)(i)(A)(2).
57IncineratorsJanuary 11, 2005November 9, 2006, 71 FR 65740Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(2).
57.1Particulate Matter Emissions from Fuel Burning EquipmentJanuary 11, 2005November 9, 2006, 71 FR 65740Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(2).
58Reduction of Animal MatterMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
59Electrical Power Generating Equipment – Oxides of Nitrogen EmissionsJuly 15, 1997July 20, 1999, 64 FR 38832Submitted on March 10, 1998. See 40 CFR 52.220(c)(254)(i)(K)(1).
62Hazardous MaterialsMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
62.6Ethylene Oxide – Sterilization and AerationJuly 16, 1991August 4, 1994, 59 FR 39690Submitted on October 25, 1991. See 40 CFR 52.220(c)(186)(i)(D)(1).
63Separation and Combination of EmissionsNovember 21, 1978June 18, 1982, 47 FR 26388Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).
64Sulfur Content of FuelsApril 13, 1999December 3, 1999, 64 FR 67787Submitted on June 3, 1999. See 40 CFR 52.220(c)(264)(i)(C)(1).
68Carbon MonoxideApril 13, 2004August 9, 2005, 70 FR 46090Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(3).
69Asphalt Air BlowingJuly 5, 1983April 17, 1987, 52 FR 12522Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
70Storage and Transfer of GasolineApril 1, 2009January 31, 2011, 76 FR 5277Submitted on September 15, 2009. See 40 CFR 52.220(c)(377)(i)(C)(1).
71 Crude Oil and Reactive Organic Compound LiquidsMay 11, 2021August 15, 2024, 89 FR 66232Submitted on October 15, 2021. See 40 CFR 52.220(c)(601)(i)(B)(1).
71.1Crude Oil Production and SeparationJune 16, 1992August 4, 1994, 59 FR 39690Submitted on September 14, 1992. See 40 CFR 52.220(c)(189)(i)(B)(1).
71.2Storage of Reactive Organic Compound LiquidsSeptember 26, 1989December 6, 1993, 58 FR 64157Submitted on October 16, 1990. See 40 CFR 52.220(c)(181)(i)(A)(1).
71.3Transfer of Reactive Organic Compound LiquidsJune 16, 1992August 4, 1994, 59 FR 39690Submitted on September 14, 1992. See 40 CFR 52.220(c)(189)(i)(B)(1).
71.4Petroleum Sumps, Pits, Ponds and Well CellarsJune 8, 1993December 14, 1994, 59 FR 64330Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(A)(1).
71.5Glycol DehydratorsDecember 13, 1994February 29, 1996, 61 FR 7706Submitted on February 24, 1995. See 40 CFR 52.220(c)(215)(i)(B)(2).
74.1Abrasive BlastingNovember 12, 1991December 7, 1998, 63 FR 67419Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(2).
74.2Architectural CoatingsNovember 10, 2020March 6, 2023
88 FR 13713
Submitted on July 26, 2021. See 40  CFR 52.220 (c)(569)(i)(A)(3).
74.3Paper, Fabric and Film Coating OperationsDecember 10, 1991September 7, 1995, 60 FR 46535Submitted on June 19, 1992. See 40 CFR 52.220(c)(188)(i)(D)(3).
74.4Cutback AsphaltJuly 5, 1983April 17, 1987, 52 FR 12522Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
74.5.1Petroleum Solvent Dry CleaningDecember 4, 1990March 24, 1992, 57 FR 10136Submitted on April 5, 1991. See 40 CFR 52.220(c)(183)(i)(B)(1).
74.5.2Synthetic Solvent Dry CleaningMay 9, 1995April 5, 2000, 65 FR 17768Submitted on August 10, 1995. See 40 CFR 52.220(c)(224)(i)(B)(3).
74.6Surface Cleaning and DegreasingNovember 10, 2020February 24, 2022, 87 FR 10311Submitted on July 26, 2021. See 40 CFR 52.220(c)(569)(i)(A)(1).
74.6.1Batch Loaded Vapor DegreasersNovember 10, 2020February 24, 2022, 87 FR 10311Submitted on July 26, 2021. See 40 CFR 52.220(c)(569)(i)(A)(2).
74.7Fugitive Emissions of Reactive Organic Compounds (ROC) at Petroleum Refineries and Chemical PlantsOctober 10, 1995July 25, 1996, 61 FR 38571Submitted on March 26, 1996. See 40 CFR 52.220(c)(230)(i)(A)(1).
74.8 (paragraphs (A) and (B))Refinery Vacuum Producing Systems, Wastewater Separators and Process TurnaroundsJune 19, 1979July 1, 1982, 47 FR 28617Submitted on October 18, 1979. See 40 CFR 52.220(c)(77)(ii)(B). Paragraphs (C) and (D) were superseded by approval of amended Rule 74.8 at 52 FR 12522 (April 17, 1987).
74.8 (paragraphs (C) and (D))Refinery Vacuum Producing Systems, Wastewater Separators and Process TurnaroundsJuly 5, 1983April 17, 1987, 52 FR 12522Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
74.9Stationary Internal Combustion EnginesNovember 8, 2005July 30, 2008, 73 FR 44155Submitted on March 10, 2006. See 40 CFR 52.220(c)(344)(i)(D)(1).
74.10Components at Crude Oil and Natural Gas Production and Processing FacilitiesMarch 10, 1998August 19, 1999, 64 FR 45175Submitted on June 23, 1998. See 40 CFR 52.220(c)(256)(i)(F)(1).
74.11Natural Gas-Fired Water HeatersMay 11, 2010October 29, 2019, 84 FR 57826Submitted on June 21, 2011. See 40 CFR 52.220(c)(391)(i)(D)(1).
74.11.1Large Water Heaters and Small BoilersSeptember 11, 2012May 19, 2014, 79 FR 28612Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(2).
74.12Surface Coating of Metal Parts and ProductsApril 8, 2008May 24, 2011, 76 FR 30025Submitted on January 10, 2010. See 40 CFR 52.220(c)(378)(i)(C)(1).
74.13Aerospace Assembly and Component Manufacturing OperationsSeptember 11, 2012July 1, 2014, 79 FR 37222 Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(4).
74.14Polyester Resin Material OperationsApril 12, 2005February 1, 2006, 71 FR 5172Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(1).
74.15Boilers, Steam Generators, and Process HeatersNovember 8, 1994February 9, 1996, 61 FR 4887Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(1).
74.15.1Boilers, Steam Generators, and Process HeatersJune 23, 2015August 1, 2016, 81 FR 50348Submitted on November 13, 2015. See 40 CFR 52.220(c)(472)(i)(B)(1).
74.16Oilfield Drilling OperationsJanuary 8, 1991April 20, 1999, 64 FR 19277Submitted on April 5, 1991. See 40 CFR 52.220(c)(183)(i)(B)(4).
74.18Motor Vehicle and Mobile Equipment Coating OperationsNovember 11, 2008September 24, 2013, 78 FR 58459 Submitted on March 17, 2009. See 40 CFR 52.220(c)(363)(i)(E)(1).
74.19Graphic ArtsJune 14, 2011September 24, 2013, 78 FR 58459 Submitted on September 27, 2011. See 40 CFR 52.220(c)(404)(i)(C)(2).
74.19.1Screen Printing OperationsNovember 11, 2003October 25, 2005, 70 FR 61561Submitted on April 26, 2005. See 40 CFR 52.220(c)(336)(i)(B)(1).
74.20Adhesives and SealantsOctober 9, 2018February 24, 2021, 86 FR 11130Submitted on January 23, 2019. See 40 CFR 52.220(c)(545)(i)(A)(1).
74.21Semiconductor ManufacturingApril 6, 1993February 29, 1996, 61 FR 7706Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(A)(4).
74.22Natural Gas-Fired, Fan-Type Central FurnacesNovember 9, 1993April 30, 1996, 61 FR 18959Submitted on February 11, 1994. See 40 CFR 52.220(c)(195)(i)(B)(1).
74.23Stationary Gas TurbinesJanuary 8, 2002June 3, 2003, 68 FR 33018Submitted on March 15, 2002. See 40 CFR 52.220(c)(297)(i)(A)(4).
74.24Marine Coating OperationsSeptember 11, 2012July 1, 2014, 79 FR 37222 Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(5).
74.24.1Pleasure Craft Coating and Commercial Boatyard OperationsJanuary 8, 2002August 13, 2002, 67 FR 52611Submitted on March 15, 2002. See 40 CFR 52.220(c)(297)(i)(A)(3).
74.25Restaurant Cooking OperationsOctober 12, 2004August 9, 2005, 70 FR 46090Submitted on January 13, 2005. See 40 CFR 52.220(c)(335)(i)(C)(1).
74.26Crude Oil Storage Tank Degassing OperationsNovember 8, 1994May 6, 1996, 61 FR 20145Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(2).
74.27Gasoline and ROC Liquid Storage Tank Degassing OperationsNovember 8, 1994May 6, 1996, 61 FR 20145Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(2).
74.28Asphalt Roofing OperationsJanuary 1, 1995February 29, 1996, 61 FR 7706Submitted on July 13, 1994. See 40 CFR 52.220(c)(198)(i)(J)(1).
74.29Soil Decontamination OperationsJuly 1, 2008October 3, 2011, 76 FR 61057Submitted on January 10, 2010. See 40 CFR 52.220(c)(378)(i)(C)(2).
74.30Wood Products CoatingsJune 27, 2006July 16, 2008, 73 FR 40754Submitted on October 5, 2006. See 40 CFR 52.220(c)(347)(i)(D)(1).
74.31Metalworking Fluids and Direct-Contact LubricantsNovember 12, 2013March 27, 2015, 80 FR 16289Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(2).
74.33Liquefied Petroleum Gas Transfer or DispensingJanuary 13, 2015September 25, 2015, 80 FR 57725Submitted on April 7, 2015. See 40 CFR 52.220(c)(461)(i)(B)(1).
74.34NOx Reductions from Miscellaneous SourcesDecember 13, 2016December 19, 2017, 82 FR 60119Submitted on February 24, 2017. See 40 CFR 52.220(c)(498)(i)(A)(1).
75CircumventionNovember 21, 1978June 18, 1982, 47 FR 26388Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).

Regulation V – Orchard Heaters

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
80PermitsJuly 5, 1983April 17, 1987, 52 FR 12522Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
81Condition of HeatersOctober 30, 1979June 18, 1982, 47 FR 26388Submitted on February 25, 1980. See 40 CFR 52.220(c)(54)(i)(C).
82Burning Rubber and Other SubstancesMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
83Orchard Heaters: Permitted TypesMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
85Prohibition of Sale of HeatersMay 23, 1972September 22, 1972, 37 FR 19812Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).

Regulation VI – Source Testing and Stack Monitoring

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
101Sampling and Testing FacilitiesMay 23, 1972August 15, 1977, 42 FR 41121Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(xiii)(A).
102Source TestsApril 13, 2004August 9, 2005, 70 FR 46090Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(3).
103Continuous Monitoring SystemsFebruary 9, 1999December 9, 2002, 67 FR 72842Submitted on June 3, 1999. See 40 CFR 52.220(c)(264)(i)(C)(2).

Regulation VIII – Emergency Action

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
150GeneralSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
151Episode CriteriaSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
152Episode Notification ProceduresSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
153Health Advisory Episode ActionsSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
154Stage 1 Episode ActionsSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
155Stage 2 Episode ActionsSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
156Stage 3 Episode ActionsSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
157Air Pollution DisasterSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
158Source Abatement PlansSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
159Traffic Abatement ProceduresSeptember 17, 1991March 18, 1999, 64 FR 13351Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).

Regulation IX – Public Records

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
200Public RecordsJanuary 29, 1974August 15, 1977, 42 FR 41121 Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
201District’s Request for InformationMarch 9, 1976August 15, 1977, 42 FR 41121 Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
202Inspection of Public Records – Disclosure PolicyMarch 9, 1976August 15, 1977, 42 FR 41121 Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
203Inspection of Public Records – Disclosure ProcedureJanuary 29, 1974August 15, 1977, 42 FR 41121 Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
204Trade SecretsJanuary 29, 1974August 15, 1977, 42 FR 41121 Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).

Regulation XI – Conformity

District CitationTitle/SubjectState Effective DateEPA Approval DateAdditional Explanation
220General ConformityMay 9, 1995April 23, 1999, 64 FR 19916Submitted on August 10, 1995. See 40 CFR 52.220(c)(224)(i)(B)(2).

Air Quality Implementation Plans

  • About Air Quality Implementation Plans
  • Approved Air Quality Implementation Plans
  • Develop an Air Quality SIP
  • Find a Regional Contact for Air Quality SIPs/FIPS/TIPs
  • Tools for SIP Status
Contact Us about Air Quality Implementation Plans
Contact Us about Air Quality Implementation Plans to ask a question, provide feedback, or report a problem.
Last updated on July 31, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.