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  2. Air Quality Implementation Plans

EPA-Approved Monterey Bay Unified 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 documents and tables contain the EPA approved rules and regulations for the Monterey Bay Unified 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 (PDF)
  • Tables of Rules and Regulations
    • District-Wide Applicability
      • Regulation I – General Provisions
      • Regulation II – Permits
      • Regulation III – Fees
      • Regulation IV – Prohibitions
      • Regulation V – Orchard, Field Crop, or Citrus Grove Heaters
      • Regulation VII – Air Emergencies
      • Regulation X – Toxic Air Contaminants
      • Appendices to Rules and Regulations
    • Monterey County and Santa Cruz County Portion of District
    • San Benito County Portion of District

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: Monterey Bay Unified APCD (pdf) (11.85 MB, September 2022)
    EPA approved and compiled rules and regulations of the Monterey Bay Unified Air Pollution Control District (MBUAPCD) Regulations portions of the California SIP.
  • EPA Approved and Compiled Rules and Regulations: Monterey and Santa Cruz County Portions of the Monterey Bay Unified APCD (pdf) (276.87 KB, September 2022)
    EPA approved and compiled rules and regulations of the Monterey and Santa Cruz County Portions of the Monterey Bay Unified Air Pollution Control District (MBUAPCD) portion of the California State Implementation Plan (SIP).
  • EPA Compiled Rules and Regulations: San Benito County Portions of the Monterey Bay Unified APCD (pdf) (349.43 KB, September 2022)
    EPA approved and compiled rules and regulations of the Monterey and Santa Cruz County Portions of the Monterey Bay Unified Air Pollution Control District (MBUAPCD) portion of the California State Implementation Plan (SIP).

Tables of Rules and Regulations

Air Pollution Rules and Regulations (District-Wide Applicability)

Regulation I – General Provisions

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
100 Title December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
101 Definitions February 21, 2007 November 15, 2007, 72 FR 64156 Submitted on August 24, 2007. See 40 CFR 52.220(c)(351)(i)(B)(1).
103 Effective Date December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
105 Separate Zone December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
106 Increments of Progress December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).

Regulation II – Permits

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
200 Permits Required December 17, 1986 July 1, 1999, 64 FR 35577 Submitted on June 9, 1987. See 40 CFR 52.220(c)(173)(i)(C)(2).
201 (introductory paragraph through subparagraph (8.6)) Source Not Requiring Permits December 17, 1986 February 3, 1989, 54 FR 5448 Submitted on June 9, 1987. See 40 CFR 52.220(c)(173)(i)(C)(1).
201 (subparagraph (8.7 through paragraph (16)) Source Not Requiring Permits December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
202 Transfer December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
203 Application October 16, 2002 March 26, 2015, 80 FR 15899 Submitted on December 12, 2002. See 40 CFR 52.220(c)(308)(i)(E)(1).
204 Cancellation of Applications March 21, 2001 March 26, 2015, 80 FR 15899 Submitted on May 31, 2001. See 40 CFR 52.220(c)(282)(i)(C)(2).
205 Provision of Sampling and Testing Facilities March 21, 2001 September 20, 2012, 77 FR 58313 Submitted on May 31, 2001. See 40 CFR 52.220(c)(282)(i)(C)(1).
206 Standards for Issuing Authorities to Construct and Permits to Operate March 21, 2001 March 26, 2015, 80 FR 15899 Submitted on May 31, 2001. See 40 CFR 52.220(c)(282)(i)(C)(3).
207 Review of New or Modified Sources April 20, 2011 March 26, 2015, 80 FR 15899 Submitted on May 12, 2011. See 40 CFR 52.220(c)(453)(i)(A)(1).
212 Public Availability of Emission Data October 16, 2002 March 26, 2015, 80 FR 15899 Submitted on December 12, 2002. See 40 CFR 52.220(c)(308)(i)(E)(2).
213 Continuous Emissions Monitoring March 21, 2001 December 9, 2002, 67 FR 72842 Submitted on May 23, 2001. See 40 CFR 52.220(c)(281)(i)(B)(1).
214 Breakdown Conditions December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
215 Banking of Emissions Reductions March 26, 1997 July 1, 1999, 64 FR 35577 Submitted on June 3, 1997. See 40 CFR 52.220(c)(258)(i)(A)(2).

Regulation III – Fees

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
300 (excluding paragraph (i)(1)) Permit Fees June 14, 1978 May 18, 1981, 46 FR 27116 Submitted on December 17, 1979. See 40 CFR 52.220(c)(58)(i)(B). Paragraph (i)(1) was disapproved – see 40 CFR 52.236(g)(1)(i).
300 (part 4, paragraph 4.4 only) Permit Fees July 1, 1993 January 17, 1997, 62 FR 2597 Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(F)(5). Only paragraph 4.4 (“Emissions Statement”) of part 4 was approved.

Regulation IV – Prohibitions

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
400 Visible Emissions August 15, 2012 December 10, 2012, 77 FR 73322 Submitted on September 20, 2012. See 40 CFR 52.220(c)(422)(i)(A)(1).
403 Particulate Matter February 16, 2005 November 9, 2006, 71 FR 65740 Submitted on July 15, 2005. See 40 CFR 52.220(c)(337)(i)(D)(1).
404 Sulfur Compounds and Nitrogen Oxides December 15, 2004 October 14, 2005, 70 FR 60008 Submitted on January 13, 2005. See 40 CFR 52.220(c)(335)(i)(A)(3).
408 Incinerator Burning September 15, 2004 April 25, 2005, 70 FR 21151 Submitted on January 13, 2005. See 40 CFR 52.220(c)(335)(i)(A)(1).
412 Sulfur Content of Fuels August 21, 2002 September 30, 2003, 68 FR 56174 Submitted on October 16, 2002. See 40 CFR 52.220(c)(302)(i)(B)(4).
413 Removal of Sulfur Compounds August 21, 2002 September 30, 2003, 68 FR 56174 Submitted on October 16, 2002. See 40 CFR 52.220(c)(302)(i)(B)(4).
414 Reduction of Animal Matter August 21, 2002 September 16, 2003, 68 FR 54167 Submitted on October 16, 2002. See 40 CFR 52.220(c)(302)(i)(B)(3).
415 Circumvention February 21, 2007 January 2, 2008, 73 FR 48 Submitted on August 24, 2007. See 40 CFR 52.220(c)(351)(i)(B)(2).
416 Solvents March 19, 2001 July 17, 2002, 67 FR 46876 Amended on January 17, 2001. Submitted on May 8, 2001. See 40 CFR 52.220(c)(284)(i)(A)(3).
417 Storage of Organic Liquids December 19, 2001 February 26, 2003, 68 FR 8835 Submitted on March 15, 2002. See 40 CFR 52.220(c)(297)(i)(D)(2).
418 Transfer of Gasoline into Stationary Storage Containers March 21, 2007 January 2, 2008, 73 FR 48 Submitted on August 24, 2007. See 40 CFR 52.220(c)(351)(i)(B)(2).
419 Bulk Gasoline Plants and Terminals December 13, 2000 April 23, 2002, 67 FR 19682 Submitted on May 8, 2001. See 40 CFR 52.220(c)(284)(i)(A)(2).
420 Effluent Oil Water Separators August 25, 1993 February 9, 1996, 61 FR 4890 Submitted on November 18, 1993. See 40 CFR 52.220(c)(194)(i)(F)(3).
421 Violations and Determinations of Compliance February 1, 1995 December 9, 2002, 67 FR 72842 Amended on December 21, 1994. Submitted on February 24, 1995. See 40 CFR 52.220(c)(215)(i)(F)(1).
425 Use of Cutback Asphalt March 26, 1997 May 26, 2000, 65 FR 34101 Submitted on June 3, 1997. See 40 CFR 52.220(c)(258)(i)(A)(3).
426 Architectural Coatings August 15, 2012 January 3, 2014, 79 FR 364 Submitted on April 22, 2013. See 40 CFR 52.220(c)(429)(i)(C)(1).
427 Steam Drive Crude Oil Production Wells October 17, 2007 June 11, 2009, 74 FR 27714 Submitted on March 7, 2008. See 40 CFR 52.220(c)(354)(i)(D)(1).
429 Applications of Non-architectural Coatings January 17, 2001 October 3, 2001, 66 FR 50319 Submitted on May 8, 2001. See 40 CFR 52.220(c)(284)(i)(A)(1).
431 Emissions from Electric Power Boilers October 17, 2001 April 8, 2002, 67 FR 16638 Submitted on November 7, 2001. See 40 CFR 52.220(c)(292)(i)(A)(1).
433 Organic Solvent Cleaning January 17, 2001 March 7, 2003, 68 FR 10966 Submitted on May 8, 2001. See 40 CFR 52.220(c)(284)(i)(A)(4).
434 Coating of Metal Parts and Products January 17, 2001 October 3, 2001, 66 FR 50319 Submitted on May 8, 2001. See 40 CFR 52.220(c)(284)(i)(A)(1).
436 Title V: General Prohibitory Rule November 6, 1996 July 1, 1999, 64 FR 35577 Adopted on May 17, 1995. Submitted on August 10, 1995. See 40 CFR 52.220(c)(224)(i)(D)(1).
438 Open Outdoor Burning September 15, 2004 April 25, 2005, 70 FR 21151 Submitted on January 13, 2005. See 40 CFR 52.220(c)(335)(i)(A)(2).

Regulation V – Orchard, Field Crop, or Citrus Grove Heaters

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
500 Definition December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
501 Non-Complying Heaters December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
502 Approved Orchard Heaters December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
503 Condition of Heaters December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
504 Classification of Heaters December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
505 Prohibition of Sale of Heaters December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
506 Burning Rubber and Other Substances December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).

Regulation VII – Air Emergencies

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
700 General December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
701 Sampling Stations December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
702 Air Sampling December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
703 Reports December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
704 Continuing Program of Voluntary Cooperation December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
705 Plans December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
706 Application of Rules December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
707 Episode Notification December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
708 Episode Criteria December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
709 First Stage Episode December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
710 Second Stage Episode December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
711 Third Stage Episode December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
712 Termination of Episodes December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).
713 Enforcement December 13, 1984 July 13, 1987, 52 FR 26148 Submitted on February 6, 1985. See 40 CFR 52.220(c)(159)(iii)(A).

Regulation X – Toxic Air Contaminants

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
1002 Transfer of Gasoline into Vehicle Fuel Tanks December 17, 2014 September 25, 2015, 80 FR 57725 Submitted on April 7, 2015. See 40 CFR 52.220(c)(461)(i)(A)(1).

Appendices to Rules and Regulations

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
Appendix G Determining Conformity of General Federal Actions to State or Federal Implementation Plans October 19, 1994 April 23, 1999, 64 FR 19916 Submitted on November 30, 1994. See 40 CFR 52.220(c)(207)(i)(E)(2).

Air Pollution Rules and Regulations (Monterey County and Santa Cruz County Portion of District)

Regulation IV – Prohibitions

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
404 (paragraph (c) only) Specific Air Contaminants July 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the Monterey-Santa Cruz County Unified Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in Monterey and Santa Cruz Counties. See 42 FR 56605 (October 27, 1977) and 40 CFR 52.277(a)(1)(i)(A).
413 Separation of Emissions July 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the Monterey-Santa Cruz County Unified Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in Monterey and Santa Cruz Counties.
414 Combination of Emissions July 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the Monterey-Santa Cruz County Unified Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in Monterey and Santa Cruz Counties.

Air Pollution Rules and Regulations (San Benito County Portion of District)

Regulation IV – Prohibitions

District Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
406 Separation of Emissions August 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the San Benito County Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in San Benito County.
407 Combination of Emissions August 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the San Benito County Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in San Benito County.
408 (paragraph (b) only) Specific Air Contaminants August 1, 1971 May 31, 1972, 37 FR 10842 Adopted by the San Benito County Air Pollution Control District. Submitted on February 21, 1972. See 40 CFR 52.220(b). Applies only to sources in San Benito County. See 42 FR 56605 (October 27, 1977) and 40 CFR 52.277(a)(1)(i)(B).

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