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  2. Air Quality Implementation Plans

Washington SIP: EPA Approved Regulations (Table 2 - Washington Department of Ecology)

Latest EPA Action: December 28, 2023

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

[Applicable in Adams, Asotin, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Kittitas, Klickitat, Lincoln, Okanogan, Pend Oreille, San Juan, Stevens, Walla Walla, and Whitman counties, excluding facilities subject to Energy Facilities Site Evaluation Council (EFSEC) jurisdiction, 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. These regulations also apply statewide for facilities subject to the applicability sections of WAC 173-400-700, WAC 173-405-012, WAC 173-410-012, and WAC 173-415-012.]

40 CFR part 52.2470(c)
Table 2 - Additional Regulations Approved for Washington Department of Ecology Direct Jurisdiction

State citation Title/subject State effective date EPA approval date Explanations
Washington Administrative Code, Chapter 173-400—General Regulations for Air Pollution Sources
173-400-010 Policy and Purpose 3/22/91 6/2/95
60 FR 28726 (PDF)
 
173-400-020 Applicability 12/29/12 10/3/14
79 FR 59653 (PDF)
 
173-400-025 Adoption of Federal Rules 9/16/18 2/24/20
85 FR 10301 (PDF)
 
173-400-030 Definitions 9/16/18 12/28/23
88 FR 89582 (PDF)
Except: 173–400–030(96).
173-400-036 Relocation of Portable Sources 12/29/12 4/29/15
80 FR 23721 (PDF)
 
173-400-040 General Standards for Maximum Emissions 9/16/18 2/24/20
85 FR 10301 (PDF)
Except: 173–400–040(2); 173–400–040(3); 173–400–040(5).
173-400-040(2) General Standards for Maximum Emissions 7/1/16 10/6/16
81 FR 69385 (PDF)
Except: 173-400-040(2)(c); 173-400-040(2)(d).
173-400-050 Emission Standards for Combustion and Incineration Units 9/16/18 2/24/20
85 FR 10301 (PDF)
Except: 173-400-050(2); 173-400-050(4); 173-400-050(5); 173-400-050(6).
173-400-060 Emission Standards for General Process Units 11/25/18 2/24/20
85 FR 10301 (PDF)
 
173-400-070 Emission Standards for Certain Source Categories 9/16/18 12/28/23
88 FR 89582 (PDF)
Except: 173–400–070(5); 173–400–070(6).
173-400-081 Emissions Limits During
Startup and Shutdown.
9/16/18 12/28/23
88 FR 89582 (PDF)
 
173–400–082 Alternative Emissions Limit
That Exceeds an Emission
Standard in the SIP.
9/16/18 12/28/23
88 FR 89582 (PDF)
 
173-400-091 Voluntary Limits on Emissions 4/1/11 10/3/14
79 FR 59653 (PDF)
9/20/93 version continues to be approved under the authority of CAA Section 112(l) with respect to Section 112 hazardous air pollutants. See 60 FR 28726 (June 2, 1995).
173-400-105 Records, Monitoring, and Reporting 11/25/18 2/24/20
85 FR 10301 (PDF)
 
173-400-110 New Source Review (NSR) for Sources and Portable Sources 12/29/12 9/29/16
81 FR 66823 (PDF)
Except: 173-400-110(1)(c)(ii)(C); 173-400-110(1)(e); 173-400-110(2)(d); The part of WAC 173-400-110(4)(b)(vi) that says, “not for use with materials containing toxic air pollutants, as listed in chapter 173-460 WAC,”; The part of 400-110(4)(e)(iii) that says, “where toxic air pollutants as defined in chapter 173-460 WAC are not emitted”; The part of 400-110(4)(f)(i) that says, “that are not toxic air pollutants listed in chapter 173-460 WAC”; The part of 400-110(4)(h)(xviii) that says, “, to the extent that toxic air pollutant gases as defined in chapter 173-460 WAC are not emitted”; The part of 400-110(4)(h)(xxxiii) that says, “where no toxic air pollutants as listed under chapter 173-460 WAC are emitted”; The part of 400-110(4)(h)(xxxiv) that says, “, or ≤1% (by weight) toxic air pollutants as listed in chapter 173-460 WAC”; The part of 400-110(4)(h)(xxxv) that says, “or ≤1% (by weight) toxic air pollutants”; The part of 400-110(4)(h)(xxxvi) that says, “or ≤1% (by weight) toxic air pollutants as listed in chapter 173-460 WAC”; 400-110(4)(h)(xl), second sentence; The last row of the table in 173-400-110(5)(b) regarding exemption levels for Toxic Air Pollutants.
173-400-111 Processing Notice of Construction Applications for Sources, Stationary Sources and Portable Sources 7/1/16 10/6/16
81 FR 69385 (PDF)
Except: 173-400-111(3)(h); The part of 173-400-111(8)(a)(v) that says, “and 173-460-040,”; 173-400-111(9).
173-400-112 Requirements for New Sources in Nonattainment Areas—Review for Compliance with Regulations 12/29/12 9/29/16
81 FR 66823 (PDF)
 
173-400-113 New Sources in Attainment or Unclassifiable Areas—Review for Compliance with Regulations 12/29/12 4/29/15
80 FR 23721 (PDF)
Except: 173-400-113(3), second sentence.
173-400-116 Increment Protection 7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-117 Special Protection Requirements for Federal Class I Areas 12/29/12 4/29/15
80 FR 23721 (PDF)
 
173-400-118 Designation of Class I, II, and III Areas 12/29/12 10/3/14
79 FR 59653 (PDF)
 
173-400-131 Issuance of Emission Reduction Credits 4/1/11 11/7/14
79 FR 66291 (PDF)
 
173-400-136 Use of Emission Reduction Credits (ERC) 12/29/12 11/7/14
79 FR 66291 (PDF)
 
173-400-151 Retrofit Requirements for Visibility Protection 2/10/05 10/3/14
79 FR 59653 (PDF)
 
173-400-161 Compliance Schedules 3/22/91 6/2/95
60 FR 28726 (PDF)
 
173-400-171 Public Notice and Opportunity for Public Comment 9/16/18 12/28/23
88 FR 89582 (PDF)
Except: The part of 173–400–171(3)(b) that says, ‘‘or any increase in emissions of a toxic air pollutant above the acceptable source impact level for that toxic air pollutant as regulated under chapter 173–460 WAC’’; 173–400–171(12).
173-400-175 Public Information 2/10/05 10/3/14
79 FR 59653 (PDF)
 
173-400-190 Requirements for Nonattainment Areas 3/22/91 6/2/95
60 FR 28726 (PDF)
 
173-400-200 Creditable Stack Height and Dispersion Techniques 2/10/05 10/3/14
79 FR 59653 (PDF)
 
173-400-205 Adjustment for Atmospheric Conditions 3/22/91 6/2/95
60 FR 28726 (PDF)
 
173-400-210 Emission Requirements of Prior Jurisdictions 3/22/91 6/2/95
60 FR 28726 (PDF)
 
173-400-560 General Order of Approval 12/29/12 4/29/15
80 FR 23721 (PDF)
Except: The part of 173-400-560(1)(f) that says, “173-460 WAC”.
173-400-700 Review of Major Stationary Sources of Air Pollution 4/1/11 4/29/15
80 FR 23721 (PDF)
 
173-400-710 Definitions 7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-720 Prevention of Significant Deterioration (PSD) 7/1/16 10/6/16
81 FR 69385 (PDF)
Except: 173-400-720(4)(a)(i through iv) and 173-400-720(4)(b)(iii)(C).
173-400-730 Prevention of Significant Deterioration
Application Processing Procedures
7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-740 PSD Permitting Public Involvement
Requirements
9/16/18 2/24/20
85 FR 10301 (PDF)
 
173-400-750 Revisions to PSD Permits 12/29/12 4/29/15
80 FR 23721 (PDF)
Except: 173-400-750(2) second sentence.
173-400-800 Major Stationary Source and Major Modification in a Nonattainment Area 4/1/11 11/7/14
79 FR 66291 (PDF)
 
173-400-810 Major Stationary Source and Major Modification Definitions 7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-820 Determining if a New Stationary Source or Modification to a Stationary Source is Subject to these Requirements 12/29/12 11/7/14
79 FR 66291 (PDF)
 
173-400-830 Permitting Requirements 7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-840 Emission Offset Requirements 7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-850 Actual Emissions Plantwide Applicability
Limitation (PAL)
7/1/16 10/6/16
81 FR 69385 (PDF)
 
173-400-860 Public Involvement Procedures 4/1/11 11/7/14
79 FR 66291 (PDF)
 

Full Text of Approved Rules

  • Table 2 - Additional Regulations Approved for Washington Department of Ecology Direct Jurisdiction (pdf) (820.42 KB, Updated as of December 28, 2023)
    Full text of EPA-approved regulations for 40 CFR part 52.2470(c) Table 2. Strikeout text denotes sections not incorporated by reference by EPA.

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Last updated on February 11, 2025
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