EPA Approved State-Wide Regulations in the Arizona 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 contain EPA approved regulations for the Arizona State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes the official tables codified in the Code of Federal Regulations. To find the status of SIP submittals, visit SIP Status Reports.

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Compiled Regulations

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State-Wide General Permits in Arizona

Title State Effective Date EPA Approval Date Additional Explanation
Arizona Dust Action General Permit (pdf) (258.88 KB, December 30, 2011) Including the general permit itself and attachments A, B, and C December 30, 2011 March 31, 2014,
79 FR 17881		 Issued by Arizona Department of Environmental Quality pursuant to ARS 49-457.05. Applies to certain types of dust sources in a county with a population of two million or more persons or any portion of a county within an area designated by EPA as a serious PM-10 nonattainment area or a maintenance area that was designated as a serious PM-10 nonattainment area. Submitted on May 25, 2012.

EPA-Approved Arizona Regulations

Arizona Administrative Code

Title 9 (Health Services)

Chapter 3
Article 1
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R9-3-101 Definitions [“Begin actual construction”] May 28, 1982 May 3, 1983, 48 FR 19878 Included 36 defined terms. All but one (“Begin actual construction”) have been superseded by subsequent approvals of R18-2-101, R18-2-217, R18-2-218, R18-2-301, R18-2-401, and R18-2-701. Submitted on June 3, 1982.
7-1-1.1 (R9-3-101) Policy and Legal Authority August 20, 1973 July 31, 1978, 43 FR 33245 Submitted on August 20, 1973.
7-1-1.3 (R9-3-103, excluding paragraph E) Air Pollution Prohibited August 20, 1973 July 31, 1978, 43 FR 33245 Submitted on August 20, 1973. EPA disapproved Paragraph E - see 40 CFR 52.133(b).
7-1-1.5 (R9-3-105) Enforcement August 20, 1973 July 31, 1978, 43 FR 33245 Submitted on August 20, 1973.
Article 4
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
7-1-4.5 (R9-3-405) Sulfur Emissions: Other Industries August 20, 1973 July 31, 1978, 43 FR 33245 Submitted on August 20, 1973.
R9-3-409 Agricultural Practices May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.
Article 5
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R9-3-505, paragraphs B to B.1, B.2, B.3 and B.4 Standards of Performance for Existing Portland Cement Plants May 28, 1982 September 28, 1982, 47 FR 42572 Submitted on June 3, 1982.
R9-3-505, paragraphs B.1.a and B.2.a Standards of Performance for Existing Portland Cement Plants July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on July 17, 1980.
R9-3-505, paragraphs A, B.1.b, B.2.b, and B.3 to D Standards of Performance for Existing Portland Cement Plants May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.
R9-3-508, paragraphs B to B.1, B.2, and B.5 Standards of Performance for Existing Asphalt Concrete Plants May 28, 1982 September 28, 1982, 47 FR 42572 Submitted on June 3, 1982.
R9-3-508, paragraphs B.1 to B.6 Standards of Performance for Existing Asphalt Concrete Plants July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on April 1, 1980.
R9-3-508, paragraphs A and C Standards of Performance for Existing Asphalt Concrete Plants May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.
R9-3-516, paragraphs A to A.1 and A.2 Standards of Performance for Existing Coal Preparation Plants May 28, 1982 September 28, 1982, 47 FR 42572 Submitted on June 3, 1982.
R9-3-516, paragraphs A.1 to A.6 Standards of Performance for Existing Coal Preparation Plants July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on April 1, 1980.
R9-3-516, paragraph B Standards of Performance for Existing Coal Preparation Plants May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.
R9-3-521, paragraphs A to A.1 and A.2 Standards of Performance for Existing Nonferrous Metals Industry Sources May 28, 1982 September 28, 1982, 47 FR 42572 Submitted on June 3, 1982.
R9-3-521, paragraphs A.1 to A.5 Standards of Performance for Existing Nonferrous Metals Industry Sources July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on April 1, 1980.
R9-3-521, paragraphs B to D Standards of Performance for Existing Nonferrous Metals Industry Sources May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.
R9-3-522, paragraphs A to A.1 and A.2 Standards of Performance for Existing Gravel or Crushed Stone Processing Plants May 28, 1982 September 28, 1982, 47 FR 42572 Submitted on June 3, 1982.
R9-3-522, paragraphs A.1 to A.5, B, and C Standards of Performance for Existing Gravel or Crushed Stone Processing Plants May 14, 1979 April 23, 1982, 47 FR 17483 Submitted on January 4, 1979.

Title 18 (Environmental Quality)

Chapter 2 (Department of Environmental Quality Air Pollution Control)
Article 1 (General)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-101 (except 20) Definitions May 4, 2022 April 3, 2024
89 FR 22963		 Submitted electronically on December 6, 2022, as an attachment to a letter dated November 30, 2022.
R18-2-102 Incorporated materials August 7, 2012 September 23, 2014
79 FR 56655		 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
Article 2 (Ambient Air Quality Standards; Area Designations; Classifications)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-201 Particulate Matter: PM10 and PM2.5 March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-202 Sulfur Oxides (Sulfur Dioxide) August 7, 2012 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-203 Ozone March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-204 Carbon monoxide September 26, 1990 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-205 Nitrogen Oxides (Nitrogen Dioxide) August 7, 2012 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-206 Lead August 7, 2012 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-210 Attainment, Nonattainment, and Unclassifiable Area Designations July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
R18-2-215 Ambient air quality monitoring methods and procedures September 26, 1990 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-216 Interpretation of Ambient Air Quality Standards and Evaluation of Air Quality Data March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-217 Designation and Classification of Attainment Areas March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-218 Limitation of Pollutants in Classified Attainment Areas March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-220 Air pollution emergency episodes, Department of Environmental Quality-Air Pollution Control September 26, 1990 October 15, 2012, 77 FR 62452 Submitted on August 15, 1994.
Article 3 (Permits and Permit Revisions)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-301 Definitions February 1, 2020 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-302 Applicability; Registration; Classes of Permits March 21, 2017 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-302.01 Source Registration Requirements February 1, 2020 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-303 Transition from Installation and Operating Permit Program to Unitary Permit Program; Registration Transition; Minor NSR Transition August 7, 2012 80 FR 67319,
November 2, 2015		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-304 Permit Application Processing Procedures February 1, 2020 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-306 Permit Contents March 21, 2017 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-306.01 Permits Containing Voluntarily Accepted Emission Limitations and Standards March 21, 2017 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-306.02 Establishment of an Emissions Cap September 22, 1999 80 FR 67319,
November 2, 2015		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-310.01 Reporting Requirements February 15, 2001 66 FR 48087,
September 18, 2001		 Submitted on March 26, 2001.
R18-2-311 Test Methods and Procedures November 15, 1993 80 FR 67319,
November 2, 2015		 Submitted on July 28, 2011.
R18-2-312 Performance Tests November 15, 1993 80 FR 67319,
November 2, 2015		 Submitted on July 28, 2011.
R18-2-313 Existing Source Emission Monitoring February 15, 2001 77 FR 66405,
November 5, 2012		 Submitted on August 24, 2012.
R18-2-315 Posting of Permit November 15, 1993 80 FR 67319,
November 2, 2015		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-316 Notice by Building Permit Agencies May 14, 1979 80 FR 67319,
November 2, 2015		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-317 Facility Changes Allowed Without Permit Revisions - Class I August 7, 2012 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-317.01 Facility Changes that Require a Permit Revision - Class II August 7, 2012 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-317.02 Procedures for Certain Changes that Do Not Require a Permit Revision - Class II August 7, 2012 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-319 Minor Permit Revisions March 21, 2017 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-320 Significant Permit Revisions March 21, 2017 86 FR 31927,
June 16, 2021		 Submitted on July 22, 2020.
R18-2-321 Permit Reopenings; Revocation and Reissuance; Termination August 7, 2012 80 FR 67319,
November 2, 2015		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-323 Permit Transfers February 3, 2007

80 FR 67319,
November 2, 2015

 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-327 Annual Emissions Inventory Questionnaire and Emissions Statement January 19, 2021 87 FR 45657, July 29, 2022 Submitted on December 22, 2020.
R18-2-330 Public Participation March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-332 Stack Height Limitation March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-334 Minor New Source Review February 1, 2020 86 FR 31927,
June 16, 2021,		 Submitted on July 22, 2020.
Article 4 (Permit Requirements for New Major Sources and Major Modifications to Existing Major Sources)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-401 Definitions March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-402 General March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-403 Permits for Sources Located in Nonattainment Areas March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-404 Offset Standards May 4, 2022

89 FR 22963, April 3, 2024

 Submitted electronically on December 6, 2022, as an attachment to a letter dated November 30, 2022.
R18-2-405 Special Rule for Major Sources of VOC or Nitrogen Oxides in Ozone Nonattainment Areas Classified as Serious or Severe March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-406 Permit Requirements for Sources Located in Attainment and Unclassifiable Areas February 1, 2020 86 FR 31927,
June 16, 2021,		 Submitted on July 22, 2020.
R18-2-407 Air Quality Impact Analysis and Monitoring Requirements March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-408 Innovative Control Technology March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-409 Air Quality Models November 15, 1993 80 FR 67319,
November 2, 2015,		 Submitted on October 29, 2012, and supplemented on September 6, 2013 and July 2, 2014.
R18-2-410 Visibility and Air Quality Related Value Protection March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-411 Permit Requirements for Sources that Locate in Attainment or Unclassifiable Areas and Cause or Contribute to a Violation of Any National Ambient Air Quality Standard March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
R18-2-412 PALs March 21, 2017 83 FR 19631, May 4, 2018 Submitted on April 28, 2017.
Article 6 (Emissions from Existing and New Nonpoint Sources)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-601 General November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-602 Unlawful Open Burning March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-604 Open Areas, Dry Washes or Riverbeds November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-605 Roadways and Streets November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-606 Material Handling November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-607 Storage Piles November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-608 Mineral Tailings March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-610 [Definitions for R18-2-611] May 12, 2000 October 11, 2001, 66 FR 51869 Submitted on July 11, 2000.
R18-2-610 Definitions for R18-2-610.01, R18-2-610.02, and R18-2-610.03 July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
R18-2-610.03 Agricultural PM General Permit for Crop Operations; Pinal County PM Nonattainment Area July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
R18-2-611 Agricultural PM10 General Permit; Maricopa PM10 Nonattainment Area May 12, 2000 October 11, 2001, 66 FR 51869 Submitted on July 11, 2000.
R18-2-612 Definitions for R18-2-612.01 July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
R18-2-612.01 Agricultural PM General Permit for Irrigation Districts; PM Nonattainment Areas Designated After June 1, 2009 July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
R18-2-614 Evaluation of nonpoint source emissions August 7, 2012 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
Article 7 (Existing Stationary Source Performance Standards)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-701 Definitions August 7, 2012 September 23, 2014, 79 FR 56655 Submitted on October 29, 2012, and supplemented on September 6, 2013. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-702 General Provisions February 3, 2004 August 24, 2004, 69 FR 51952 Establishes opacity standards. Submitted on January 16, 2004.
R18-2-703 Standards of Performance for Existing Fossil-Fuel Fired Steam Generators and General Fuel Burning Equipment March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-704 Standards of Performance for Incineration August 4, 2007 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-706 Standards of Performance for Existing Nitric Acid Plants November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-707 Standards of Performance for Existing Sulfuric Acid Plants November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-710 Standards of Performance for Existing Vessels for Petroleum Liquids November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-714 Standards of Performance for Existing Sewage Treatment Plants November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-715, section F, excluding (F)(2), and section G Standards of Performance for Existing Primary Copper Smelters: Site-Specific Requirements March 7, 2009 September 23, 2014, 79 FR 56655; May 10, 2021, 86 FR 24726 EPA approved the rescission of sections (F)(2) and (H) on May 10, 2021.
R18-2-715.01 Standards of Performance for Existing Primary Copper Smelters, Compliance and Monitoring July 18, 2002 November 1, 2004, 69 FR 63321 Submitted on September 12, 2003.
R18-2-715.02 Standards of Performance for Existing Primary Copper Smelters; Fugitive Emissions 5/7/2017 11/14/2018, 83 FR 56736 Submitted by the Governor's designee on April 6, 2017.
R18-2-719 Standards of Performance for Existing Stationary Rotating Machinery March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-720 Standards of Performance for Existing Lime Manufacturing Plants March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-723 Standards of Performance for Existing Concrete Batch Plants November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-724 Standards of Performance for Existing Fossil-Fuel Fired Industrial and Commercial Equipment March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-725 Standards of Performance for Existing Dry Cleaning Plants November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-726 Sandblasting Operations November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-727 Standards of Performance for Spray Painting Operations November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-728 Standards of Performance for Existing Ammonium Sulfide Manufacturing Plants November 15, 1993 September 23, 2014, 79 FR 56655 Submitted on July 15, 1998, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 12-2, June 30, 2012.
R18-2-729 Standards of Performance for Cotton Gins August 4, 2007 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-730 Standards of Performance for Unclassified Sources March 7, 2009 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-1, March 31, 2009.
R18-2-732 Standards of Performance for Existing Hospital/Medical/Infectious Waste Incinerators August 4, 2007 September 23, 2014, 79 FR 56655 Submitted on July 28, 2011, and supplemented on May 16, 2014. AAC, title 18, chapter 2, supp. 09-2, June 30, 2009.
Article 8 (Emissions from Mobile Sources (New and Existing)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-801 Classification of Mobile Sources November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-802 Off-Road Machinery November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-803 Heater-Planer Units November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-804 Roadway and Site Cleaning Machinery November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
R18-2-805 Asphalt and Tar Kettles November 15, 1993 March 24, 2003, 68 FR 14151 Submitted on July 15, 1998.
Article 10 (Motor Vehicles; Inspections and Maintenance)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-1001 Definitions December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1003 Vehicles to be Inspected by the Mandatory Vehicle Emissions Inspection Program June 28, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1005 Time of Inspection December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1006 Emissions Test Procedures January 1, 2002 January 22, 2003, 68 FR 2912 Submitted on April 10, 2002.
R18-2-1007 Evidence of Meeting State Inspection Requirements December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1008 Procedure for Issuing Certificates of Waiver December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1009 Tampering Repair Requirements December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1010 Low Emissions Tune-up, Emissions and Evaporative System Repair December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1011 Vehicle Inspection Report December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1012 Inspection Procedures and Fee December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1013 Reinspections December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1016 Licensing of Inspectors January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1017 Inspection of Government Vehicles January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1018 Certificate of Inspection January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1019 Fleet Station Procedures and Permits January 1, 2002 January 22, 2003, 68 FR 2912 Submitted on April 10, 2002.
R18-2-1022 Procedure for Waiving Inspections Due to Technical Difficulties January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1023 Certificate of Exemption for Out-of-State Vehicles January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1025 Inspection of Contractor's Equipment and Personnel January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1026 Inspection of Fleet Stations January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1027 Registration and Inspection of Emission Analyzers and Opacity Meters January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1028 Certification of Users of Registered Analyzers and Analyzer Repair Persons January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1029 Vehicle Emission Control Devices January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1030 Visible Emissions; Mobile Sources January 14, 2000 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
R18-2-1031 Standards for Evaluating the Oxidation Efficiency of a Catalytic Converter December 20, 1999 January 22, 2003, 68 FR 2912 Submitted on July 6, 2001.
Table 1 Dynamometer Loading Table - Annual Tests November 14, 1994 January 22, 2003, 68 FR 2912 Table 1 is cited in R18-2-1006. Submitted on July 6, 2001.
Table 2 Emissions Standards - Annual Tests, Maximum Allowable June 21, 1995 January 22, 2003, 68 FR 2912 Table 2 is cited in R18-2-1006 and R18-2-1019. Submitted on July 6, 2001.
Table 3 Emissions Standards - Biennial Tests December 20, 1999 January 22, 2003, 68 FR 2912 Table 3 is cited in R18-2-1006. Submitted on July 6, 2001.
Table 4 Transient Driving Cycle December 20, 1999 January 22, 2003, 68 FR 2912 Table 4 is cited in R18-2-1006 and R18-2-1016. Submitted on July 6, 2001.
Table 5 Tolerances November 14, 1994 January 22, 2003, 68 FR 2912 Table 5 is cited in R18-2-1006. Submitted on July 6, 2001.
Table 6 Emissions Standards - Remote Sensing Identification December 20, 1999 January 22, 2003, 68 FR 2912 Table 6 is cited in the VEI regulations. Submitted on July 6, 2001.
Article 13 (State Implementation Plan Rules For Specific Locations)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-B1301 Limits on Lead Emissions from the Hayden Smelter 7/1/2018 11/14/2018, 83 FR 56736 Submitted by the Governor's designee on April 6, 2017.
R18-2-B1301.01 Limits on Lead-Bearing Fugitive Dust from the Hayden Smelter December 1, 2018 February 22, 2018, 83 FR 7614 Submitted on April 6, 2017.
R18-2-B1302 Limits on SO2 from the Hayden Smelter July 1, 2018 85 FR 70483, November 5, 2020 Submitted on April 6, 2017. EPA issued a limited approval and limited disapproval of Rule R18-2-B1302.
R18-2-C1302, excluding subsection (E)(6) Limits on SO2 Emissions from the Miami Smelter 12/14/2018 11/14/2018, 83 FR 56736 Submitted by the Governor's designee on April 6, 2017. Subsection (E)(6) was withdrawn by the Arizona Department of Environmental Quality.
Appendix 14 Procedures for Sulfur Dioxide and Lead Fugitive Emissions Studies for the Hayden Smelter 5/7/2017 11/14/2018, 83 FR 56736 Submitted by the Governor's designee on April 6, 2017.
Appendix 15 Test Methods for Determining Opacity and Stabilization of Unpaved Roads May 7, 2017 February 22, 2018, 83 FR 7614 Submitted on April 6, 2017.
Article 14 (Conformity Determinations)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-1438 General Conformity for Federal Actions January 31, 1995 April 23, 1999, 64 FR 19916 Submitted on March 3, 1995.
Article 15 (Forest and Range Management Burns)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R18-2-1501 Definitions March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1502 Applicability March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1503 Annual Registration March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1504 Prescribed Burn Plan March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1505 Prescribed Burn Requests and Authorization March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1506 Smoke Dispersion and Evaluation March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1507 Prescribed Burn Accomplishment; Wildlife Reporting March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1508 Wildland Fire Use: Plan, Authorization, Monitoring; Inter-Agency Consultation; Status Reporting March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1509 Emission Reduction Techniques March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1510 Smoke Management Techniques March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1511 Monitoring March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1512 Burner Qualifications March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
R18-2-1513 Public Notification Program; Regional Coordination March 16, 2004 May 16, 2006, 71 FR 28270 Submitted on December 30, 2004.
Appendices to Title 18 (Environmental Quality), Chapter 2 (Department of Environmental Quality Air Pollution Control)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
Appendix 1 Filing Instructions for Installation Permit Application July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on April 1, 1980. Appendix 1 in its entirety was approved at 47 FR 17483 (April 23, 1982). Certain subsections of appendix 1 were superseded by approval of revisions at 48 FR 19878 (May 3, 1983) and at 49 FR 41026 (October 19, 1984. The latter rule was corrected 69 FR 2509 (January 16, 2004).
Appendix 1, subsections A1.4, A1.4.1, A1.4.3 (added), A1.4.3 (renumbered only), A1.5, A1.6.1 (deleted), A1.6.2 and A1.6.3 (renumbered only), A1.6.4 and A1.6.5 (deleted), A1.6.6 (renumbered only), A1.6.6.1, A1.6.6.2 and A1.6.6.3 (renumbered only), A1.6.6.4 (deleted), A1.6.6.5 (renumbered only) A1.6.6.6, A1.6.6.7 (Renumbered), A1.6.7.1, A1.6.7.2, A1.6.7.3 and Form ADHS/EHS Air Quality 100A (rev 12-80) Filing Instructions for Installation Permit Application May 28, 1982 May 3, 1983, 48 FR 19878 Relates to State PSD regulations. Submitted on June 3, 1982.
Appendix 1, subsections A1.5.6, and A1.9 (added) Filing Instructions for Installation Permit Application September 22, 1983 October 19, 1984, 49 FR 41026; corrected on January 16, 2004, 69 FR 2509 Submitted on February 3, 1984.
Appendix 2 Test Methods and Protocols July 2, 2015 May 1, 2017, 82 FR 20267 Submitted on December 21, 2015.
Appendix 2 Filing Instructions for Operating Permit Application July 25, 1979 April 23, 1982, 47 FR 17483 Submitted on April 1, 1980. Appendix 2 in its entirety was approved at 47 FR 17483 (April 23, 1982). Certain subsections of appendix 2 were superseded by approval of revisions at 48 FR 19878 (May 3, 1983).
Appendix 2, subsections A2.2.5, A2.3, A2.3.8 Filing Instructions for Operating Permit Application May 28, 1982 May 3, 1983, 48 FR 19878 Relates to State PSD regulations. Submitted on June 3, 1982.
Appendix 8 Procedures for Utilizing the Sulfur Balance Method for Determining Sulfur Emissions July 18, 2005 April 12, 2006, 71 FR 18624 Cited in Arizona Administrative Code rule R18-2-715.01. Submitted on March 1, 2006.

Materials Incorporated By Reference in Title 18 (Environmental Quality)

Chapter 2 (Department of Environmental Quality Air Pollution Control)
Appendices to Title 18 (Environmental Quality), Chapter 2 (Department of Environmental Quality Air Pollution Control)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
[Incorporated by reference through R18-2-102] Arizona Testing Manual for Air Pollutant Emissions, Revision F, excluding sections 2 through 7 March 1992 September 23, 2014, 79 FR 56655 Approval includes section 1 only. Submitted on July 28, 2011, and supplemented on May 16, 2014. Relates to various provisions in Arizona Administrative Code, title 18, chapter 2, articles 4, 6, and 7.
[Incorporated by reference through R18-2-220] Procedures for Prevention of Emergency Episodes 1988 Edition October 15, 2012, 77 FR 62452 Submitted on August 15, 1994.

Title 20 (Commerce, Financial Institutions, and Insurance)

Chapter 2 (Department of Weights and Measures)
Article 1 (Administration and Procedures)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R20-2-101 Definitions June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
Article 7 (Motor Fuels and Petroleum Products)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R20-2-701 Definitions February 9, 2001 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-716 Sampling and Access to Records October 18, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-750 Registration Relating to Arizona CBG or AZR-BOB September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-751 Arizona CBG Requirements February 9, 2001 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-752 General Requirements for Registered Suppliers September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-753 General Requirements for Pipelines and 3rd-party Terminals September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-754 Downstream Blending Exceptions for Transmix September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-755 Additional Requirements for AZRBOB and Downstream Oxygenate Blending September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-756 Downstream Blending of Arizona CBG with Nonoxygenate Blendstocks September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-757 Product Transfer Documentation; Records; Retention September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-758 Adoption of Fuel Certification Models September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-759 Testing Methodologies February 9, 2001 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-760 Compliance Surveys February 9, 2001 March 4, 2004, 69 FR 10161. Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-761 Liability for Noncompliant Arizona CBG or AZRBOB September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
R20-2-762 Penalties September 22, 1999 March 4, 2004, 69 FR 10161 Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
Table 1 Type 1 Gasoline Standards February 9, 2001 March 4, 2004, 69 FR 10161 Table 1 is cited in R20-2-751 (“Arizona CBG Requirements”). Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
Table 2 Type 2 Gasoline Standards February 9, 2001 March 4, 2004, 69 FR 10161 Table 2 is cited in R20-2-751 (“Arizona CBG Requirements”). Submitted on August 15, 2001. Relates to the Arizona Cleaner Burning Gasoline (CBG) program.
Article 9 (Gasoline Vapor Control)
State Citation Title/Subject State Effective Date EPA Approval Date Additional Explanation
R20-2-901 Material Incorporated by Reference June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-902 Exemptions June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-903 Equipment and Installation June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-904 Application Requirements and Process for Authority to Construct Plan Approval June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-905 Initial Inspection and Testing June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-907 Operation October 8, 1998 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-908 Training and Public Education October 8, 1998 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-909 Recordkeeping and Reporting October 8, 1998 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-910 Annual Inspection and Testing June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-911 Compliance Inspections June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.
R20-2-912 Enforcement June 5, 2004 June 13, 2012, 77 FR 35279 Submitted on September 21, 2009.

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Last updated on March 7, 2025