An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Related Topics:
Contact Us

Washington SIP: EPA Approved Regulations (Table 1 - Statewide)

Latest EPA Action: February 26, 2020

Note: The official SIPs are contained in regulations promulgated in the Federal Register and codified in the U.S. Code of Federal Regulations (CFR). EPA’s web-versions of the approved SIPs are for reference. While we make every effort to maintain the accuracy of the files accessible here, inconsistencies may occur. Please contact us if you find any errors in these files.

View Full Text of EPA Approved Rules

Not applicable on Indian reservations (excluding non-trust land within the exterior boundaries of the Puyallup Indian Reservation) and any other area where the EPA or an Indian tribe has demonstrated that a tribe has jurisdiction.

40 CFR Part 52.2470(c)
Table 1 - Regulations Approved Statewide
State citation Title/subject State effective date EPA approval date Explanations
Washington Administrative Code, Chapter 173-405—Kraft Pulping Mills
173-405-012 Statement of Purpose 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB, About PDF)		  
173-405-021 Definitions 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		  
173-405-040 Emissions Standards 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		 Except sections (1)(b), (1)(c), (3)(b), (3)(c), (4), (7), (8) & (9).
173-405-045 Creditable Stack Height & Dispersion Techniques 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-405-061 More Restrictive Emission Standards 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-405-072 Monitoring Requirements 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–405–072(2).
173-405-077 Report of Startup, Shutdown, Breakdown or Upset Conditions 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-405-078 Emission Inventory 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-405-086 New Source Review (NSR) 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except provisions related to WAC 173–400–114 and provisions excluded from our approval of WAC 173–400–110 through 173– 400–113.
173-405-087 Prevention of Significant Deterioration (PSD) 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–400–720(4)(a)(i through iv), 173– 400–720(4)(b)(iii)(C), and 173–400–750(2) second sentence.
173-405-091 Special Studies 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-410—Sulfite Pulping Mills
173-410-012 Statement of Purpose 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-410-021 Definitions 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		  
173-410-040 Emissions Standards 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		 Except the exception provision in (3) & section (5).
173-410-045 Creditable Stack Height & Dispersion Techniques 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-410-062 Monitoring Requirements 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		  
173-410-067 Report of Startup, Shutdown, Breakdown or Upset Conditions 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-410-071 Emission Inventory 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-410-086 New Source Review (NSR) 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except provisions related to WAC 173–400–114 and provisions excluded from our approval of WAC 173–400–110 through 173– 400–113.
173-410-087 Prevention of Significant Deterioration (PSD) 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–400–720(4)(a)(i through iv), 173–400–720(4)(b)(iii)(C), and 173–400–750(2) second sentence.
173-410-100 Special Studies 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-415—Primary Aluminum Plants
173-415-010 Statement of Purpose 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-415-015 Applicability 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–415–015(3).
173-415-020 Definitions 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–415–020(6).
173-415-030 Emissions Standards 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		 Except sections (1) & (3)(b).
173-415-060 Monitoring and Reporting 5/24/19 2/26/20
85 FR 10984 (PDF)(3 pp, 291 K)		 Except 173–415–060(1)(b).
173-415-070 Report of Startup, Shutdown, Breakdown or Upset Conditions 3/22/91 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-422—Motor Vehicle Emission Inspection
173-422-010 Purpose 6/3/93 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-020 Definitions 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-030 Vehicle Emission Inspection Requirement 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-031 Vehicle Emission Inspection Schedules 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-035 Registration Requirements 3/31/95 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-040 Noncompliance Areas 6/3/93 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-050 Emission Contributing Areas 11/9/96 5/19/97
62 FR 27204 (PDF)(6 pp, 141 K)		  
173-422-060 Gasoline Vehicle Emission Standards 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-065 Diesel Vehicle Exhaust Emission Standards 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-070 Gasoline Vehicle Exhaust Emission Testing Procedures 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-075 Diesel Vehicle Inspection Procedure 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-090 Exhaust Gas Analyzer Specifications 3/31/95 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-095 Exhaust Opacity Testing Equipment 3/11/94 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-100 Testing Equipment Maintenance and Calibration 3/31/95 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-120 Quality Assurance 3/31/95 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-145 Fraudulent Certificates of Compliance/Acceptance 4/6/90 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-160 Fleet and Diesel Owner Vehicle Testing Requirements 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		 Except: The part of 173-422-160(3) that says “of twelve or less dollars”.
173-422-170 Exemptions 12/2/00 5/12/05
70 FR 24491 (PDF)(2 pp, 140 K)		  
173-422-175 Fraudulent Exemptions 1/2/84 9/25/96
61 FR 50235 (PDF)(4 pp, 127 K)		  
173-422-190 Emission Specialist Authorization 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
173-422-195 Listing of Authorized Emission Specialists 7/4/02 8/11/15
80 FR 48033 (PDF)(4 pp, 242 K)		  
Washington Administrative Code, Chapter 173-425—Open Burning
173-425-010 Purpose 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-020 Applicability 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-030 Definitions 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-036 Curtailment During Episodes or Impaired Air Quality 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-045 Prohibited Materials 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-055 Exceptions 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-065 Residential Open Burning 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-075 Commercial Open Burning 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-085 Agricultural Open Burning 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-095 No Burn Area Designation 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-100 Delegation of Agricultural Open Burning Program 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-115 Land Clearing Projects 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-120 Department of Natural Resources Smoke Management Plan 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-130 Notice of Violation 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-425-140 Remedies 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-430—Burning of Field and Forage and Turf Grasses Grown for Seed Open Burning
173-430-010 Purpose 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-020 Definitions 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-030 Permits, Conditions, and Restrictions 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-040 Mobile Field Burners 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-050 Other Approvals 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-060 Study of Alternatives 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-070 Fees 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-430-080 Certification of Alternatives 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-433—Solid Fuel Burning Device Standards
173-433-010 Purpose 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-020 Applicability 12/16/87 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-433-030 Definitions 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-100 Emission Performance Standards 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-110 Opacity Standards 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-120 Prohibited Fuel Types 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-130 General Emission Standards 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-433-140 Criteria for Impaired Air Quality Burn Bans 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-150 Restrictions on Operation of Solid Fuel Burning Devices 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
173-433-155 Criteria for Prohibiting Solid Fuel Burning Devices That Are Not Certified 2/23/14 5/9/14
79 FR 26628 (PDF)(4 pp, 242 K)		  
Washington Administrative Code, Chapter 173-434—Solid Waste Incinerator Facilities
173-434-010 Purpose 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-434-020 Applicability and Compliance 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-030 Definitions 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-090 Operation and Maintenance Plan 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-434-110 Standards of Performance 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		 Except section (1)(a).
173-434-130 Emission Standards 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		 Except section (2).
173-434-160 Design and Operation 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-170 Monitoring and Reporting 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-190 Changes in Operation 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-200 Emission Inventory 1/22/04 8/4/05
70 FR 44855 (PDF)(3 pp, 148 K)		  
173-434-210 Special Studies 10/18/90 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
Washington Administrative Code, Chapter 173-435—Emergency Episode Plan
173-435-010 Purpose 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-015 Significant Harm Levels 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-020 Definitions 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-030 Episode Stage Criteria 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-040 Source Emission Reduction Plans 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-050 Action Procedures 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-060 Enforcement 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		  
173-435-070 Sampling Sites, Equipment and Methods 1/3/89 1/15/93
58 FR 4578 (PDF)(340 pp, 99 MB)		 Except section (1).
Washington Administrative Code, Chapter 173-476—Ambient Air Quality Standards
173-476-010 Purpose 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-020 Applicability 7/1/16 10/6/16
81 FR 69386 (PDF)(6 pp, yy K)		  
173-476-030 Definitions 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-100 Ambient Air Quality Standard for PM-10 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-110 Ambient Air Quality Standards for PM-2.5 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-120 Ambient Air Quality Standard for Lead (Pb) 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-130 Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide) 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-140 Ambient Air Quality Standards for Nitrogen Oxides (Nitrogen Dioxide) 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-150 Ambient Air Quality Standard for Ozone 7/1/16 10/6/16
81 FR 69386 (PDF)(6 pp, yy K)		  
173-476-160 Ambient Air Quality Standards for Carbon Monoxide 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-170 Monitor Siting Criteria 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-180 Reference Conditions 12/22/13 3/4/14
79 FR 12077 (PDF)(3 pp, 223 K)		  
173-476-900 Table of Standards 7/1/16 10/6/16
81 FR 69386 (PDF)(6 pp, yy K)		  
Washington Administrative Code, Chapter 173-490—Emission Standards and Controls for Sources Emitting Volatile Organic Compounds
173-490-010 Policy and Purpose 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-020 Definitions 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-025 General Applicability 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-030 Registration and Reporting 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-040 Requirements 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-080 Exceptions and Alternative Methods 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-090 New Source Review (NSR) 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-200 Petroleum Refinery Equipment Leaks 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-201 Petroleum Liquid Storage in External Floating Roof Tanks 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-202 Leaks from Gasoline Transport Tanks and Vapor Collection System 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-203 Perchloroethylene Dry Cleaning Systems 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-204 Graphic Arts System 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-205 Surface Coating of Miscellaneous Metal Parts and Products 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-207 Surface Coating of Flatwood Paneling 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
173-490-208 Aerospace Assembly and Component Coating Operations 3/22/91 7/12/93
58 FR 37426 (PDF)(236 pp, 61 MB)		  
Washington Administrative Code, Chapter 173-492—Motor Fuel Specifications for Oxygenated Gasoline
173-492-010 Policy and Purpose 10/19/96 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-020 Applicability 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-030 Definitions 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-040 Compliance Requirements 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-050 Registration Requirements 10/19/96 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-060 Labeling Requirements 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-070 Control Areas and Control Periods 10/19/96 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-080 Enforcement and Compliance 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-090 Unplanned Conditions 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  
173-492-100 Severability 12/1/92 4/30/97
62 FR 23363 (PDF)(3 pp, 121 K)		  

Full Text of Approved Rules

Note: Strikeout text denotes sections not incorporated by reference by EPA.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Contact Us to ask a question, provide feedback, or report a problem.