Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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Draft fee schedule (WAC 173-455) 5-18-22

This is the May 18, 2022 draft fee schedule for Chapter 173-455 WAC, Air Quality Fee Rule.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455-5-18-22

Draft fee by source (WAC 173-455; WAC 173-400) 06/27/17

This shows draft fee amounts on 06/27/17 for registration sources for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-by-source-wac-173-455;-wac-173-400-06

Draft refrigerant management requirements (WAC 173-443) 11-17-22

This is the November 17, 2022 draft requirements for refrigerant management under Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-refrigerant-management-requirements-wac-1

Draft rule 11/29/17

This is the draft rule from 11/29/17.

https://ecology.wa.gov/draft-rule-wac-173-400-401-11-29-17

Draft fee schedule (WAC 173-455; 173-400) 2/28/18

This is a draft fee schedule for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources. (2/28/18)

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-173-400-02-28-18

Draft fee schedule (WAC 173-455; 173-400) 02/07/18

This is a draft fee schedule for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources. (2/7/18)

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-173-400-02-07-18

Draft refrigerant management requirements (WAC 173-443) 9-14-22

This is the September 14, 2022 draft requirements for refrigerant management under Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-refrigerant-management-requirements-wac-173

Draft fee schedule (WAC 173-455; WAC 173-400) 06/27/17

This is a draft fee schedule on 06/27/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-wac-173-400-06-2

Draft fee schedule (WAC 173-455; WAC 173-400) 05/24/17

This is a draft fee schedule on 05/24/17 for for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-wac-173-400-05-2

Carbon Intensities Blended Fuels Substitute Pathways (WAC 173-424) 7-15-22

This is a spreadsheet of carbon intensities of blended fuels for substitute pathways, November 17, 2022 version.

https://ecology.wa.gov/carbon-intensities-blended-fuels-substitute-pa-2

Carbon Intensities Blended Fuels Substitute Pathways (WAC 173-424) 7-15-22

This is a spreadsheet of carbon intensities of blended fuels for substitute pathways, July 15, 2022 version.

https://ecology.wa.gov/carbon-intensities-blended-fuels-substitute-pa-1

Carbon Intensities Blended Fuels Substitute Pathways (WAC 173-424) 4-29-22

This is a spreadsheet of carbon intensities of blended fuels for substitute pathways, April 29, 2022 version.

https://ecology.wa.gov/carbon-intensities-blended-fuels-substitute-pathwa

Carbon Intensity Lookup Table (WAC 173-424) 4-26-22

This is a table of carbon intensity values for lookup pathways under Washington Clean Fuels Standard, 4/26/22 version.

https://ecology.wa.gov/carbon-intensity-lookup-table-wac-173-424-4-26-22

Decision-making document (WAC 173-460) 05/19

This is the documentation of key decisions for updating the list of toxic air pollutants in Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollution Sources.

https://ecology.wa.gov/decision-making-document-wac-173-460-05-19

Carbon Intensity Lookup Table (WAC 173-424) 03/09/22

This is the 3/9/22 table of carbon intensity lookup and baseline carbon intensity.

https://ecology.wa.gov/draft-carbon-intensity-lookup-table-wac-173-424-03

Carbon Intensity Model Peer Review Report (WAC 173-424) 04/06/22

This is the April 6, 2022 Carbon Intensity Model Peer Review Report for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/carbon-intensity-model-peer-review-report-wac-173

Crude Carbon Intensity Analysis (WAC 173-424) 11-22

This is the final table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-11-22

Crude Carbon Intensity Analysis (WAC 173-424) 06-22

This is the June 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-06-22

Crude Carbon Intensity Analysis (WAC 173-424) 04/22

This is the April 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-04-22

Crude Carbon Intensity Analysis (WAC 173-424) 03/09/22

This is the March 9, 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-03-09