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  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 Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
1 Title July 2, 1968 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
2 Definitions April 9, 2019 November 12, 2020, 85 FR 71846  Submitted on August 19, 2019. See 40 CFR 52.220(c)(542)(i)(B)(1).
4 Rules Supplemental March 9, 1976 August 15, 1977, 42 FR 41121  Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
5 Effective Date April 13, 2004 May 19, 2014, 79 FR 28612 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(4).
6 Severability November 21, 1978 June 18, 1982, 47 FR 26388 Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).
7 Zone Boundaries June 14, 1977 March 20, 1979, 44 FR 16912 Submitted on June 22, 1978. See 40 CFR 52.220(c)(44)(iii)(A).

Regulation II – Permits

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
10 Permits Required April 13, 2004 December 3, 2019, 84 FR 66074 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(5).
11 Definitions for Regulation II  March 14, 2006 October 24, 2008, 73 FR 63382 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(1).
12 Applications for Permits June 13, 1995 December 7, 2000, 65 FR 76567 Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
13 Action on Applications for an Authority to Construct June 13, 1995 December 7, 2000, 65 FR 76567 Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
14 Action on Applications for a Permit to Operate June 13, 1995 December 7, 2000, 65 FR 76567 Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
15 Standards for Permit Issuance June 13, 1995 December 7, 2000, 65 FR 76567 Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
15.1 Sampling and Testing Facilities October 12, 1993 December 7, 2000, 65 FR 76567 Submitted on March 29, 1994. See 40 CFR 52.220(c)(196)(i)(B)(2).
16 BACT Certification June 13, 1995 December 7, 2000, 65 FR 76567 Submitted on October 13, 1995. See 40 CFR 52.220(c)(225)(i)(G)(2).
19 Posting of Permits May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
20 Transfer of Permit May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
23 Exemptions from Permit November 12, 2013 July 14, 2015, 80 FR 40909 Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(3).
24 Source Recordkeeping, Reporting and Emission Statements September 15, 1992 December 7, 2000, 65 FR 76567 Submitted on November 12, 1992. See 40 CFR 52.220(c)(190)(i)(A)(3).
26 New Source Review - General March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.1 New Source Review - Definitions November 14, 2006 January 11, 2010, 75 FR 1282 Submitted on May 8, 2007. See 40 CFR 52.220(c)(350)(i)(E)(1).
26.2 New Source Review - Requirements March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.3 New Source Review - Exemptions March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.4 New Source Review - Emission Banking March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.5 New Source Review - Essential Public Service Bank March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.6 New Source Review - Calculations March 14, 2006 January 11, 2010, 75 FR 1282 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(2).
26.7 New Source Review – Notification December 22, 1992 December 7, 2000, 65 FR 76567 Submitted on May 13, 1993. See 40 CFR 52.220(c)(193)(i)(E)(1).
26.8 New Source Review – Permit to Operate October 22, 1991 December 7, 2000, 65 FR 76567 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(4).
26.9 New Source Review – Power Plants October 22, 1991 December 7, 2000, 65 FR 76567 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(4).
26.11 New Source Review – ERC Evaluation at Time of Use May 14, 2002 February 28, 2003, 68 FR 9561 Submitted on May 20, 2002. See 40 CFR 52.220(c)(305)(i)(A)(1).
26.13 New Source Review — Prevention of Significant Deterioration (PSD) November 10, 2015 March 10, 2017, 82 FR 13243 Submitted on March 11, 2016. See 40 CFR 52.220(c)(474)(i)(D)(1).
28 Revocation of Permits May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
29 Conditions on Permits March 14, 2006 October 24, 2008, 73 FR 63382 Submitted on June 16, 2006. See 40 CFR 52.220(c)(345)(i)(C)(1).
30 Permit Renewal May 30, 1989 December 7, 2000, 65 FR 76567 Submitted on March 26, 1990. See 40 CFR 52.220(c)(179)(i)(D)(2).
31 Public Disclosure of Data January 29, 1974 August 15, 1977, 42 FR 41121  Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
34 Acid Deposition Control March 14, 1995 May 20, 2004, 69 FR 29074 Submitted on May 24, 1995. See 40 CFR 52.220(c)(220)(i)(E)(1).

Regulation IV – Prohibitions

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
50 Opacity April 13, 2004 August 9, 2005, 70 FR 46090 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
52 Particulate Matter - Concentration (Grain Loading) April 13, 2004 August 9, 2005, 70 FR 46090 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
53 Particulate Matter – Process Weight April 13, 2004 August 9, 2005, 70 FR 46090 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(2).
54 Sulfur Compounds January 14, 2014 January 20, 2015, 80 FR 2609 Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(1).
56 Open Burning November 11, 2003 February 22, 2005, 70 FR 8516 Submitted on January 15, 2004. See 40 CFR 52.220(c)(328)(i)(A)(2).
57 Incinerators January 11, 2005 November 9, 2006, 71 FR 65740 Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(2).
57.1 Particulate Matter Emissions from Fuel Burning Equipment January 11, 2005 November 9, 2006, 71 FR 65740 Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(2).
58 Reduction of Animal Matter May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
59 Electrical Power Generating Equipment – Oxides of Nitrogen Emissions July 15, 1997 July 20, 1999, 64 FR 38832 Submitted on March 10, 1998. See 40 CFR 52.220(c)(254)(i)(K)(1).
62 Hazardous Materials May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
62.6 Ethylene Oxide – Sterilization and Aeration July 16, 1991 August 4, 1994, 59 FR 39690 Submitted on October 25, 1991. See 40 CFR 52.220(c)(186)(i)(D)(1).
63 Separation and Combination of Emissions November 21, 1978 June 18, 1982, 47 FR 26388 Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).
64 Sulfur Content of Fuels April 13, 1999 December 3, 1999, 64 FR 67787 Submitted on June 3, 1999. See 40 CFR 52.220(c)(264)(i)(C)(1).
68 Carbon Monoxide April 13, 2004 August 9, 2005, 70 FR 46090 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(3).
69 Asphalt Air Blowing July 5, 1983 April 17, 1987, 52 FR 12522 Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
70 Storage and Transfer of Gasoline April 1, 2009 January 31, 2011, 76 FR 5277 Submitted on September 15, 2009. See 40 CFR 52.220(c)(377)(i)(C)(1).
71 Crude Oil and Reactive Organic Compound Liquids May 11, 2021 August 15, 2024, 89 FR 66232 Submitted on October 15, 2021. See 40 CFR 52.220(c)(601)(i)(B)(1).
71.1 Crude Oil Production and Separation June 16, 1992 August 4, 1994, 59 FR 39690 Submitted on September 14, 1992. See 40 CFR 52.220(c)(189)(i)(B)(1).
71.2 Storage of Reactive Organic Compound Liquids September 26, 1989 December 6, 1993, 58 FR 64157 Submitted on October 16, 1990. See 40 CFR 52.220(c)(181)(i)(A)(1).
71.3 Transfer of Reactive Organic Compound Liquids June 16, 1992 August 4, 1994, 59 FR 39690 Submitted on September 14, 1992. See 40 CFR 52.220(c)(189)(i)(B)(1).
71.4 Petroleum Sumps, Pits, Ponds and Well Cellars June 8, 1993 December 14, 1994, 59 FR 64330 Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(A)(1).
71.5 Glycol Dehydrators December 13, 1994 February 29, 1996, 61 FR 7706 Submitted on February 24, 1995. See 40 CFR 52.220(c)(215)(i)(B)(2).
74.1 Abrasive Blasting November 12, 1991 December 7, 1998, 63 FR 67419 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(2).
74.2 Architectural Coatings November 10, 2020 March 6, 2023
88 FR 13713
Submitted on July 26, 2021. See 40  CFR 52.220 (c)(569)(i)(A)(3).
74.3 Paper, Fabric and Film Coating Operations December 10, 1991 September 7, 1995, 60 FR 46535 Submitted on June 19, 1992. See 40 CFR 52.220(c)(188)(i)(D)(3).
74.4 Cutback Asphalt July 5, 1983 April 17, 1987, 52 FR 12522 Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
74.5.1 Petroleum Solvent Dry Cleaning December 4, 1990 March 24, 1992, 57 FR 10136 Submitted on April 5, 1991. See 40 CFR 52.220(c)(183)(i)(B)(1).
74.5.2 Synthetic Solvent Dry Cleaning May 9, 1995 April 5, 2000, 65 FR 17768 Submitted on August 10, 1995. See 40 CFR 52.220(c)(224)(i)(B)(3).
74.6 Surface Cleaning and Degreasing November 10, 2020 February 24, 2022, 87 FR 10311 Submitted on July 26, 2021. See 40 CFR 52.220(c)(569)(i)(A)(1).
74.6.1 Batch Loaded Vapor Degreasers November 10, 2020 February 24, 2022, 87 FR 10311 Submitted on July 26, 2021. See 40 CFR 52.220(c)(569)(i)(A)(2).
74.7 Fugitive Emissions of Reactive Organic Compounds (ROC) at Petroleum Refineries and Chemical Plants October 10, 1995 July 25, 1996, 61 FR 38571 Submitted 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 Turnarounds June 19, 1979 July 1, 1982, 47 FR 28617 Submitted 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 Turnarounds July 5, 1983 April 17, 1987, 52 FR 12522 Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
74.9 Stationary Internal Combustion Engines November 8, 2005 July 30, 2008, 73 FR 44155 Submitted on March 10, 2006. See 40 CFR 52.220(c)(344)(i)(D)(1).
74.10 Components at Crude Oil and Natural Gas Production and Processing Facilities March 10, 1998 August 19, 1999, 64 FR 45175 Submitted on June 23, 1998. See 40 CFR 52.220(c)(256)(i)(F)(1).
74.11 Natural Gas-Fired Water Heaters May 11, 2010 October 29, 2019, 84 FR 57826 Submitted on June 21, 2011. See 40 CFR 52.220(c)(391)(i)(D)(1).
74.11.1 Large Water Heaters and Small Boilers September 11, 2012 May 19, 2014, 79 FR 28612 Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(2).
74.12 Surface Coating of Metal Parts and Products April 8, 2008 May 24, 2011, 76 FR 30025 Submitted on January 10, 2010. See 40 CFR 52.220(c)(378)(i)(C)(1).
74.13 Aerospace Assembly and Component Manufacturing Operations September 11, 2012 July 1, 2014, 79 FR 37222  Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(4).
74.14 Polyester Resin Material Operations April 12, 2005 February 1, 2006, 71 FR 5172 Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(B)(1).
74.15 Boilers, Steam Generators, and Process Heaters November 8, 1994 February 9, 1996, 61 FR 4887 Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(1).
74.15.1 Boilers, Steam Generators, and Process Heaters June 23, 2015 August 1, 2016, 81 FR 50348 Submitted on November 13, 2015. See 40 CFR 52.220(c)(472)(i)(B)(1).
74.16 Oilfield Drilling Operations January 8, 1991 April 20, 1999, 64 FR 19277 Submitted on April 5, 1991. See 40 CFR 52.220(c)(183)(i)(B)(4).
74.18 Motor Vehicle and Mobile Equipment Coating Operations November 11, 2008 September 24, 2013, 78 FR 58459  Submitted on March 17, 2009. See 40 CFR 52.220(c)(363)(i)(E)(1).
74.19 Graphic Arts June 14, 2011 September 24, 2013, 78 FR 58459  Submitted on September 27, 2011. See 40 CFR 52.220(c)(404)(i)(C)(2).
74.19.1 Screen Printing Operations November 11, 2003 October 25, 2005, 70 FR 61561 Submitted on April 26, 2005. See 40 CFR 52.220(c)(336)(i)(B)(1).
74.20 Adhesives and Sealants October 9, 2018 February 24, 2021, 86 FR 11130 Submitted on January 23, 2019. See 40 CFR 52.220(c)(545)(i)(A)(1).
74.21 Semiconductor Manufacturing April 6, 1993 February 29, 1996, 61 FR 7706 Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(A)(4).
74.22 Natural Gas-Fired, Fan-Type Central Furnaces November 9, 1993 April 30, 1996, 61 FR 18959 Submitted on February 11, 1994. See 40 CFR 52.220(c)(195)(i)(B)(1).
74.23 Stationary Gas Turbines January 8, 2002 June 3, 2003, 68 FR 33018 Submitted on March 15, 2002. See 40 CFR 52.220(c)(297)(i)(A)(4).
74.24 Marine Coating Operations September 11, 2012 July 1, 2014, 79 FR 37222  Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(A)(5).
74.24.1 Pleasure Craft Coating and Commercial Boatyard Operations January 8, 2002 August 13, 2002, 67 FR 52611 Submitted on March 15, 2002. See 40 CFR 52.220(c)(297)(i)(A)(3).
74.25 Restaurant Cooking Operations October 12, 2004 August 9, 2005, 70 FR 46090 Submitted on January 13, 2005. See 40 CFR 52.220(c)(335)(i)(C)(1).
74.26 Crude Oil Storage Tank Degassing Operations November 8, 1994 May 6, 1996, 61 FR 20145 Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(2).
74.27 Gasoline and ROC Liquid Storage Tank Degassing Operations November 8, 1994 May 6, 1996, 61 FR 20145 Submitted on January 24, 1995. See 40 CFR 52.220(c)(214)(i)(D)(2).
74.28 Asphalt Roofing Operations January 1, 1995 February 29, 1996, 61 FR 7706 Submitted on July 13, 1994. See 40 CFR 52.220(c)(198)(i)(J)(1).
74.29 Soil Decontamination Operations July 1, 2008 October 3, 2011, 76 FR 61057 Submitted on January 10, 2010. See 40 CFR 52.220(c)(378)(i)(C)(2).
74.30 Wood Products Coatings June 27, 2006 July 16, 2008, 73 FR 40754 Submitted on October 5, 2006. See 40 CFR 52.220(c)(347)(i)(D)(1).
74.31 Metalworking Fluids and Direct-Contact Lubricants November 12, 2013 March 27, 2015, 80 FR 16289 Submitted on May 13, 2014. See 40 CFR 52.220(c)(441)(i)(C)(2).
74.33 Liquefied Petroleum Gas Transfer or Dispensing January 13, 2015 September 25, 2015, 80 FR 57725 Submitted on April 7, 2015. See 40 CFR 52.220(c)(461)(i)(B)(1).
74.34 NOx Reductions from Miscellaneous Sources December 13, 2016 December 19, 2017, 82 FR 60119 Submitted on February 24, 2017. See 40 CFR 52.220(c)(498)(i)(A)(1).
75 Circumvention November 21, 1978 June 18, 1982, 47 FR 26388 Submitted on May 23, 1979. See 40 CFR 52.220(c)(51)(xx)(A).

Regulation V – Orchard Heaters

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
80 Permits July 5, 1983 April 17, 1987, 52 FR 12522 Submitted on October 16, 1985. See 40 CFR 52.220(c)(164)(i)(C)(1).
81 Condition of Heaters October 30, 1979 June 18, 1982, 47 FR 26388 Submitted on February 25, 1980. See 40 CFR 52.220(c)(54)(i)(C).
82 Burning Rubber and Other Substances May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
83 Orchard Heaters: Permitted Types May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
85 Prohibition of Sale of Heaters May 23, 1972 September 22, 1972, 37 FR 19812 Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).

Regulation VI – Source Testing and Stack Monitoring

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
101 Sampling and Testing Facilities May 23, 1972 August 15, 1977, 42 FR 41121 Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(xiii)(A).
102 Source Tests April 13, 2004 August 9, 2005, 70 FR 46090 Submitted on July 19, 2004. See 40 CFR 52.220(c)(332)(i)(B)(3).
103 Continuous Monitoring Systems February 9, 1999 December 9, 2002, 67 FR 72842 Submitted on June 3, 1999. See 40 CFR 52.220(c)(264)(i)(C)(2).

Regulation VIII – Emergency Action

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
150 General September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
151 Episode Criteria September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
152 Episode Notification Procedures September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
153 Health Advisory Episode Actions September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
154 Stage 1 Episode Actions September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
155 Stage 2 Episode Actions September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
156 Stage 3 Episode Actions September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
157 Air Pollution Disaster September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
158 Source Abatement Plans September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).
159 Traffic Abatement Procedures September 17, 1991 March 18, 1999, 64 FR 13351 Submitted on January 28, 1992. See 40 CFR 52.220(c)(187)(i)(B)(3).

Regulation IX – Public Records

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
200 Public Records January 29, 1974 August 15, 1977, 42 FR 41121  Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
201 District’s Request for Information March 9, 1976 August 15, 1977, 42 FR 41121  Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
202 Inspection of Public Records – Disclosure Policy March 9, 1976 August 15, 1977, 42 FR 41121  Submitted on April 21, 1976. See 40 CFR 52.220(c)(31)(xiii)(A).
203 Inspection of Public Records – Disclosure Procedure January 29, 1974 August 15, 1977, 42 FR 41121  Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).
204 Trade Secrets January 29, 1974 August 15, 1977, 42 FR 41121  Submitted on July 19, 1974. See 40 CFR 52.220(c)(24)(x)(A).

Regulation XI – Conformity

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
220 General Conformity May 9, 1995 April 23, 1999, 64 FR 19916 Submitted on August 10, 1995. See 40 CFR 52.220(c)(224)(i)(B)(2).

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