EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Washington SIP
Latest EPA Action: April 16, 2025
- Table 1 - Approved but Not Incorporated by Reference Regulations
- Table 2 - Attainment, Maintenance, and Other Plans
- Full Text of EPA Approved Rules for Table 1
| State/local citation | Title/subject | State/local effective date | EPA approval date | Explanations |
|---|---|---|---|---|
| Washington Department of Ecology Regulations | ||||
| 173-400-220 | Requirements for Board Members | 3/22/91 | 6/2/95 60 FR 28726 (pdf) (127 KB) | |
| 173-400-230 | Regulatory Actions | 3/20/93 | 6/2/95 60 FR 28726 (pdf) (127 KB) | |
| 173-400-240 | Criminal Penalties | 3/22/91 | 6/2/95 60 FR 28726 (pdf) (127 KB) | |
| 173-400-250 | Appeals | 9/20/93 | 6/2/95 60 FR 28726 (pdf) (127 KB) | |
| 173-400-260 | Conflict of Interest | 07/01/16 | 10/6/16 81 FR 69385 (pdf) (233 KB) | |
| 173-433-200 | Regulatory Actions and Penalties | 10/18/90 | 1/15/93 | |
| Energy Facility Site Evaluation Council Regulations | ||||
| 463-78-135 | Criminal Penalties | 11/11/04 | 5/30/17 82 FR 24531 (pdf) (253 KB) | |
| 463-78-140 | Appeals Procedure | 3/26/06 | 5/30/17 82 FR 24531 (pdf) (253 KB) | Except (3) and (4). |
| 463-78-170 | Conflict of Interest | 11/11/04 | 5/30/17 82 FR 24531 (pdf) (253 KB) | |
| 463-78-230 | Regulatory Actions | 11/11/04 | 5/30/17 82 FR 24531 (pdf) (253 KB) | |
| Benton Clean Air Agency Regulations | ||||
| 2.01 | Powers and Duties of the Benton Clean Air Agency (BCAA) | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | |
| 2.02 | Requirements for Board of Directors Members | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | Replaces WAC 173-400-220. |
| 2.03 | Powers and Duties of the Board of Directors | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | |
| 2.04 | Powers and Duties of the Control Officer | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | |
| 2.05 | Severability | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | |
| 2.06 | Confidentiality of Records and Information | 12/11/14 | 11/17/15 80 FR 71695 (pdf) (243 KB) | |
| Northwest Clean Air Agency Regulations | ||||
| 103 | Duties and Powers | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 105 | Separability | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 110 | Investigation and Studies | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 111 | Interference or Obstruction | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 112 | False and Misleading Oral Statement: Unlawful Reproduction or Alteration of Documents | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 113 | Service of Notice | 12/22/07 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 114 | Confidential Information | 12/22/07 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 120 | Hearings | 12/22/07 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 123 | Appeal of Orders | 4/14/13 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 124 | Display of Orders, Certificates and Other Notices: Removal or Mutilation Prohibited | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 131 | Notice to Violators | 4/14/13 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 132 | Criminal Penalty | 9/13/15 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 133 | Civil Penalty | 9/13/15 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 134 | Restraining Orders - Injunction | 8/21/05 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 135 | Assurance of Discontinuance | 12/22/07 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| 303 | Work Done Without an Approval | 5/12/19 | 6/15/20 85 FR 36154 (pdf) (285 KB) | |
| Olympic Region Clean Air Agency Regulations | ||||
| 8.1.6 | Penalties | 5/22/10 | 10/3/13 78 FR 61188 (pdf) (240 KB) | |
| Puget Sound Clean Air Agency Regulations | ||||
| 3.01 | Duties and Powers of the Control Officer | 11/1/99 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.05 | Investigations by the Control Officer | 3/17/94 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.07 | Compliance Tests | 5/1/06 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.09 | Violations—Notice | 9/12/91 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.11 | Civil Penalties | 11/1/19 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.13 | Criminal Penalties | 9/12/91 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.15 | Additional Enforcement | 9/12/91 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.17 | Appeal of Orders | 11/14/98 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.19 | Confidential Information | 9/12/91 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| 3.21 | Separability | 9/12/91 | 4/22/20 85 FR 22355 (pdf) (257 KB) | |
| Southwest Clean Air Agency Regulations | ||||
| 400-220 | Requirements for Board Members | 3/18/01 | 04/10/17 82 FR 17136 (pdf) (248 KB) | |
| 400-230 | Regulatory Actions and Civil Penalties | 9/10/21 | 9/29/23 88 FR 67097 (pdf) (271 KB) | |
| 400-240 | Criminal Penalties | 9/10/21 | 9/29/23 88 FR 67097 (pdf) (271 KB) | |
| 400-250 | Appeals | 11/9/03 | 04/10/17 82 FR 17136 (pdf) (248 KB) | |
| 400-270 | Confidentiality of Records and Information | 9/10/21 | 9/29/23 88 FR 67097 (pdf) (271 KB) | |
| 400-280 | Powers of Agency | 9/10/21 | 9/29/23 88 FR 67097 (pdf) (271 KB) | |
| Spokane Regional Clean Air Agency Regulations | ||||
| 2.01 | Powers and Duties of the Board | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | |
| 2.02 | Control Officer’s Duties and Powers | 09/01/20 | 5/10/21 86 FR 24718 (pdf) (309 KB) | Section 2.02(E) replaces WAC 173–400–105(3). |
| 2.03 | Confidential or Proprietary Information | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | |
| 2.04 | Violations | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | Replaces WAC 173–400–230(1)&(6). |
| 2.05 | Orders and Hearings | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | |
| 2.06 | Appeal of Board Orders | 09/01/20 | 5/10/21 86 FR 24718 (pdf) (309 KB) | Replaces WAC 173–400–250. |
| 2.10 | Severability | 09/01/20 | 5/10/21 86 FR 24718 (pdf) (309 KB) | |
| 2.11 | Penalties, Civil Penalties, and Additional Means for Enforcement | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | Replaces WAC 173–400–230(2)&(3). |
| 2.12 | Restraining Orders—Injunctions. | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | Replaces WAC 173–400–230(4). |
| 8.11 | Regulatory Actions and Penalties | 7/15/23 | 4/16/25 90 FR 15930 (pdf) (245 KB) | |
| Yakima Regional Clean Air Agency Regulations | ||||
| 1.05 | Roles and Responsibilities | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 2.01 | Authority and Investigation | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 2.02 | Authority to Collect Fees | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 2.05 | Appeals | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 5.01 | General Information | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 5.02 | Additional or Alternative Enforcement Actions | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| 5.03 | Penalties | 11/09/20 | 7/11/22 87 FR 41064 (pdf) (308 KB) | |
| Name of SIP provision | Applicable geographic or nonattainment area | State submittal date | EPA approval date | Explanations |
|---|---|---|---|---|
| Attainment and Maintenance Planning—Carbon Monoxide | ||||
| Carbon Monoxide Attainment Plan | Yakima | 4/27/79 | 6/5/80 45 FR 37821 (pdf) (56.6 MB) | |
| Puget Sound Carbon Monoxide Attainment Plan | Puget Sound | 1/22/93 | 1/20/94 59 FR 2994 (pdf) (29.4 KB) | |
| Spokane Carbon Monoxide Attainment Plan | Spokane | 1/22/93 | 1/20/94 59 FR 2994 (pdf) (29.4 KB) | |
| Vancouver Carbon Monoxide Attainment Plan | Vancouver | 1/22/93 | 1/20/94 59 FR 2994 (pdf) (29.4 KB) | |
| Vancouver Carbon Monoxide Attainment Plan—Contingency Measure | Vancouver | 11/10/93 | 10/31/94 59 FR 54419 (pdf) (12.6 KB) | |
| Puget Sound Carbon Monoxide Attainment Plan - VMT Supplement | Puget Sound | 1/22/93 | 8/23/95 60 FR 43710 (pdf) (127 KB) | |
| Puget Sound Carbon Monoxide Maintenance Plan | Puget Sound | 2/29/96 | 10/11/96 61 FR 53323 (pdf) (140 KB) | |
| Vancouver Carbon Monoxide Maintenance Plan | Vancouver | 3/19/96 | 10/21/96 61 FR 54560 (pdf) (126 KB) | |
| Spokane Carbon Monoxide Attainment Plan—Revisions | Spokane | 9/14/93; 4/30/96 | 9/22/97 62 FR 49442 (pdf) (119 KB) | |
| Spokane Carbon Monoxide Attainment Plan—Correction | Spokane | 12/31/97 62 FR 68187 (pdf) (116 KB) | ||
| Yakima Carbon Monoxide Maintenance Plan | Yakima | 9/26/01 | 11/01/02 67 FR 66555 (pdf) (155 KB) | |
| Puget Sound Carbon Monoxide Maintenance Plan 10-Year Update | Puget Sound | 12/17/03; 6/3/19 | 8/5/04 69 FR 47365 (pdf) (143 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Spokane Carbon Monoxide Attainment Plan—Including Kaiser Orders | Spokane | 9/20/01; 11/22/04 | 5/12/05 70 FR 24991 (pdf) (143 KB) | |
| Spokane Carbon Monoxide Maintenance Plan | Spokane | 11/29/04 | 6/29/05 70 FR 37269 (pdf) (160 KB) | |
| Vancouver Carbon Monoxide Maintenance Plan 10-Year Update | Vancouver | 4/25/07; 6/3/19 | 6/27/08 73 FR 36439 (pdf) (160 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Spokane Carbon Monoxide 2nd 10-Year Limited Maintenance Plan | Spokane | 5/11/16; 6/3/19 | 7/14/2016 81 FR 45417 (pdf) (223 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Attainment and Maintenance Planning—Lead (Pb) | ||||
| Lead Attainment Plan | Seattle | 9/27/84 | 1/29/85 50 FR 3907 (pdf) (49.9 MB) | |
| Attainment and Maintenance Planning—Ozone | ||||
| Ozone Attainment Plan | Vancouver | 7/16/82 | 12/17/82 47 FR 56497 (pdf) (43.8 MB) | |
| Ozone Attainment Plan | Seattle-Tacoma | 7/16/82 | 2/28/83 48 FR 8273 (pdf) (27.9 MB) | |
| Ozone Attainment Plan—VOC RACT | Seattle-Tacoma | 5/14/91 | 7/12/93 58 FR 37426 | |
| Ozone Attainment Plan—VOC RACT | Vancouver | 5/14/91 | 7/12/93 58 FR 37426 | |
| Ozone Attainment Plan—Emission Statement Program | Seattle-Tacoma | 1/28/93 | 9/12/94 59 FR 46764 (pdf) (16.4 KB) | |
| Ozone Attainment Plan—Emission Statement Program | Vancouver | 1/28/93 | 9/12/94 59 FR 46764 (pdf) (16.4 KB) | |
| Seattle-Tacoma Ozone Maintenance Plan | Seattle-Tacoma | 3/4/96 | 9/26/96 61 FR 50438 (pdf) (189 KB) | |
| Vancouver Ozone Maintenance Plan | Vancouver | 6/13/96 | 5/19/97 62 FR 27204 (pdf) (141 KB) | |
| Seattle-Tacoma Ozone Maintenance Plan 10-Year Update | Seattle-Tacoma | 12/17/03 | 8/5/04 69 FR 47365 (pdf) (143 KB) | |
| Seattle-Tacoma 8-Hour Ozone 110(a)(1) Maintenance Plan | Seattle-Tacoma | 2/5/08; 6/3/19 | 5/2/14 79 FR 25010 (pdf) (248 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Vancouver 8-Hour Ozone 110(a)(1) Maintenance Plan | Vancouver | 1/17/2007; 6/3/19 | 8/11/15 80 FR 48033 (pdf) (242 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Attainment and Maintenance Planning—Particulate Matter (PM10) | ||||
| Kent Particulate Matter (PM10) Attainment Plan | Kent | 11/15/91 | 7/27/93 58 FR 40059 (pdf) (3.6 MB) | |
| Thurston County Particulate Matter (PM10) Attainment Plan | Thurston County | 2/17/89 and 11/15/91 | 7/27/93 58 FR 40056 (pdf) (4.1 MB) | |
| Tacoma Particulate Matter (PM10) Attainment Plan | Tacoma | 5/2/95 | 10/25/95 60 FR 54559 (pdf) (124 KB) | |
| Seattle Particulate Matter (PM10) Attainment Plan | Seattle | 2/21/95 | 10/26/95 60 FR 54812 (pdf) (137 KB) | |
| Spokane Particulate Matter (PM10) Attainment Plan | Spokane | 12/9/94 | 1/27/97 62 FR 3800 (pdf) (131 KB) | |
| Wallula Particulate Matter (PM10) Attainment Plan | Wallula | 11/13/91 | 1/27/97 62 FR 3800 (pdf) (131 KB) | |
| Yakima Particulate Matter (PM10) Attainment Plan | Yakima | 3/24/89 | 2/2/98 63 FR 5269 (pdf) (126 KB) | |
| Thurston County Particulate Matter (PM10) Maintenance Plan | Thurston County | 8/16/99 | 10/4/00 65 FR 59128 (pdf) (239 KB) | |
| Kent Particulate Matter (PM10) Maintenance Plan | Kent | 8/23/99 | 3/13/01 66 FR 14492 (pdf) (160 KB) | |
| Seattle Particulate Matter (PM10) Maintenance Plan | Seattle | 8/23/99 | 3/13/01 66 FR 14492 (pdf) (160 KB) | |
| Tacoma Particulate Matter (PM10) Maintenance Plan | Tacoma | 8/23/99 | 3/13/01 66 FR 14492 (pdf) (160 KB) | |
| Yakima Particulate Matter (PM10) Maintenance Plan | Yakima | 7/8/04 | 2/8/05 70 FR 6591 (pdf) (148 KB) | |
| Wallula Particulate Matter (PM10) Attainment Plan - Revision | Wallula | 11/30/04 | 5/2/05 70 FR 22597 (pdf) (149 KB) | |
| Spokane Particulate Matter (PM10) Maintenance Plan | Spokane | 11/30/04 | 7/1/05 70 FR 38029 (pdf) (182 KB) | |
| Wallula Particulate Matter (PM10) Maintenance Plan | Wallula | 3/29/05 | 8/26/05 70 FR 50212 (pdf) (150 KB) | |
| Thurston County Particulate Matter (PM10) 2nd 10-year Limited Maintenance Plan | Thurston County | 7/1/13 | 10/3/13 78 FR 61188 (pdf) (240 KB) | |
| Kent Particulate Matter (PM10) 2nd 10-Year Limited Maintenance Plan | Kent | 11/29/13 | 8/20/14 79 FR 49244 (pdf) (286 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Seattle Particulate Matter (PM10) 2nd 10-Year Limited Maintenance Plan | Seattle | 11/29/13 | 8/20/14 79 FR 49244 (pdf) (286 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Tacoma Particulate Matter (PM10) 2nd 10-Year Limited Maintenance Plan | Tacoma | 11/29/13 | 8/20/14 79 FR 49244 (pdf) (286 KB); 2/18/21 86 FR 10026 (pdf) (240 KB) | 6/3/19 submission moved Motor Vehicle Inspection and Maintenance Program from control measure to contingency measure. |
| Spokane Particulate Matter (PM10) 2nd 10-Year Limited Maintenance Plan | Spokane | 1/4/16 | 4/12/16 81 FR 21470 (pdf) (237 KB) | |
| Wallula Particulate Matter (PM10) 2nd 10-Year Maintenance Plan | Wallula | 11/22/19 | 5/1/20 85 FR 25303 (pdf) (262 KB) | |
| Attainment and Maintenance Planning—Particulate Matter (PM2.5) | ||||
| Tacoma-Pierce County Particulate Matter (PM2.5) Clean Data Determination | Tacoma-Pierce County | 05/22/12 | 9/4/12 77 FR 53772 (pdf) (233 KB) | |
| Tacoma-Pierce County Particulate Matter (PM2.5) 2008 Baseline Emissions Inventory and SIP Strengthening Rules | Tacoma-Pierce County | 11/28/12 | 5/29/13 78 FR 32131 (pdf) (238 KB) | |
| Tacoma-Pierce County Approval of Motor Vehicle Emission Budgets and Determination of Attainment for the 2006 24-Hour Fine Particulate Standard (PM2.5) | Tacoma-Pierce County | 11/28/12 | 9/19/13 78 FR 57503 (pdf) (238 KB) | |
| Tacoma-Pierce County Particulate Matter (PM2.5) Maintenance Plan | Tacoma-Pierce County | 11/03/14 | 2/10/15 80 FR 7347 (pdf) (261 KB) | |
| Visibility and Regional Haze Plans | ||||
| Visibility New Source Review (NSR) for non-attainment areas for Washington | Statewide | 6/26/86 51 FR 23228 (pdf) (48.4 MB) | ||
Washington State Visibility Protection Program 1998 Washington Dept. of Natural Resources Smoke Management Plan (pdf) (106 pp, 832 KB) | Statewide | 11/5/99 | 6/11/03 68 FR 34821 (pdf) (145 KB) | |
| Regional Haze State Implementation Plan—TransAlta BART | Statewide | 12/29/11 | 12/6/12 77 FR 72742 (pdf) (238 KB) | |
| Regional Haze SIP | Statewide | 12/22/10 | 6/11/14 79 FR 33438 (pdf) (364 KB) | The Regional Haze SIP including those provisions relating to BART incorporated by reference in § 52.2470 ‘Identification of plan’ with the exception of the BART provisions that are replaced with a BART FIP in § 52.2498 Visibility protection and § 52.2501 Best available retrofit technology (BART) requirement for the Tesoro Refining and Marketing Company oil refinery—Better than BART Alternative. |
| Regional Haze SIP—Technical Correction | Statewide | 12/22/10 | 11/24/14 79 FR 69767 (pdf) (240 KB) | |
| Regional Haze State Implementation Plan—BP Cherry Point Refinery BART Revision | Statewide | 5/14/15 | 2/16/16 81 FR 7710 (pdf) (236 KB) | |
| Regional Haze Progress Report | Statewide | 11/6/17 | 7/31/18 83 FR 36752 (pdf) (227 KB) | |
| Washington Regional Haze SIP Revision for the Second Implementation Period (2018–2028) | Statewide | 1/28/22 | 9/25/25 90 FR 46070 (pdf) (241 KB) | |
| Smoke Management Planning | ||||
| Department of Natural Resources 2022 Smoke Management Plan. | Statewide | 8/10/22 | 8/10/2023 88 FR 54240 (pdf) (230 KB) | |
| 110(a)(2) Infrastructure and Interstate Transport | ||||
| Interstate Transport for the 1997 8-Hour Ozone and PM2.5NAAQS | Statewide | 1/17/07 | 1/13/09 74 FR 1591 (pdf) (149 KB) | |
| 110(a)(2) Infrastructure Requirements—1997 Ozone Standard | Statewide | 1/24/12 | 5/24/12 77 FR 30902 (pdf) (233 KB) | |
| 110(a)(2) Infrastructure Requirements—2008 Lead Standard | Statewide | 4/14/14 | 7/23/14 79 FR 42683 (pdf) (234 KB) | This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). |
| 110(a)(2) Infrastructure Requirements—2008 Ozone and 2010 Nitrogen Dioxide Standards | Statewide | 9/22/14 | 1/14/15 80 FR 1849 (pdf) (236 KB) | This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). |
| 110(a)(2) Infrastructure Requirements—1997, 2006, and 2012 Fine Particulate Matter (PM2.5) Standards | Statewide | 9/22/14 | 5/12/15 80 FR 27102 (pdf) (270 KB) | This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). |
| Interstate Transport for the 2008 Pb and 2010 NO2 NAAQS | Statewide | 5/11/15 | 7/16/15 80 FR 42042 (pdf) (232 KB) | This action addresses CAA 110(a)(2)(D)(i)(I). |
| Interstate Transport for the 2006 24-hour PM2.5 NAAQS | Statewide | 5/11/15 | 7/30/15 80 FR 45429 (pdf) (253 KB) | This action addresses CAA 110(a)(2)(D)(i)(I). |
| Interstate Transport for the 2008 Ozone NAAQS | Statewide | 5/11/15 | 12/15/15 80 FR 77578 (pdf) (222 KB) | This action addresses CAA 110(a)(2)(D)(i)(I). |
| Interstate Transport for the 2012 PM2.5 NAAQS | Statewide | 2/7/18 | 8/20/18 83 FR 42031 (pdf) (239 KB) | |
| Interstate Transport for the 2015 Ozone NAAQS | Statewide | 2/7/18 | 9/20/2018 83 FR 47568 (pdf) (234 KB) | This action addresses CAA 110(a)(2)(D)(i)(I). |
| 110(a)(2) Infrastructure Requirements— Sulfur Dioxide Standards and 2015 Ozone Standards | Statewide | 9/30/19 and 4/3/20 | 2/18/2021 86 FR 10022 (pdf) (242 KB) | This action addresses the following CAA section 110(a)(2) elements: (A), (B), (C), (D)(i)(II), (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). |
| Interstate Transport for the 2010 SO2 NAAQS | Statewide | 2/7/18 | 2/18/2021 86 FR 10015 (pdf) (233 KB) | This action addresses CAA 110(a)(2)(D)(i)(I). |
| Other Federally Mandated Plans | ||||
| Oxygenated Gasoline Program | 1/22/93 | 1/20/94 59 FR 2994 (pdf) (29.4 KB) | ||
| Business Assistance Program | 11/16/92 | 3/8/95 60 FR 12685 (pdf) (128 KB) | ||
| Supplementary Documents | ||||
| Air Quality Monitoring, Data Reporting and Surveillance Provisions | 3/5/80 | 4/15/81 46 FR 21994 (pdf) (28.9 MB) | ||
| Energy Facilities Site Evaluation Council (EFSEC) Memorandum of Agreement | 7/30/80 | 2/23/82 47 FR 7837 (pdf) (46 MB) | ||
| 2003 Columbia Plateau Windblown Dust Natural Events Action Plan (pdf) (625 KB) | 11/22/19 | 5/1/20 85 FR 25303 (pdf) (262 KB) | ||
| 2018 Fugitive Dust Control Guidelines for Beef Cattle Feedlots and Best Management Practices (pdf) (205 KB) | 11/22/19 | 5/1/20 85 FR 25303 (pdf) (262 KB) | ||