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 rule language (WAC 173-446A) 09/21/21

This is the draft rule language for Chapter 173-446A WAC, Criteria for Emissions-Intensive, Trade-Exposed Industries.

https://ecology.wa.gov/draft-rule-language-wac-173-446a-09-21-21

Draft rule language for WAC 173-405 (WAC 173-405; WAC 173-410; WAC 173-415) 07/17/18

This is draft rule language for Chapter 173-405 WAC, Kraft Pulping Mills. (7/17/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-405-wac-173-405;

Draft rule language (WAC 173-446) 01/04/22

This is the draft rule language for Chapter 173-446 WAC, Climate Commitment Act Program. (1/4/22 version)

https://ecology.wa.gov/draft-rule-language-wac-173-446-01-11-22

Draft rule language (WAC 173-455) 5-18-22

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

https://ecology.wa.gov/draft-rule-language-wac-173-455-5-18-22

Draft rule language (WAC 173-444) 05/07/20

This is draft rule language for Chapter 173-444 WAC, Clean Energy Transformation Rule.

https://ecology.wa.gov/draft-rule-language-wac-173-444-05-07-20

Draft rule language (WAC 173-446) 12/09/21

This is the draft rule language for Chapter 173-446 WAC, Climate Commitment Act Program. (12/9/21 version)

https://ecology.wa.gov/draft-rule-language-wac-173-446-12-09-21

Draft rule language for WAC 173-405 (WAC 173-405; WAC 173-410; WAC 173-415) 08/14/18

This is draft rule language for Chapter 173-405 WAC, Kraft Pulping Mills. (8/14/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-405-wac-173-4-1

Draft rule language (WAC 173-444) 01/14/20

This is the draft rule language for Chapter 173-444 WAC, Clean Energy Transformation.

https://ecology.wa.gov/draft-rule-language-wac-173-444-01-14-20

Draft rule language for WAC 173-410 (WAC 173-405; WAC 173-410; WAC 173-415) 07/17/18

This is draft rule language for Chapter 173-410 WAC, Sulfite Pulping Mills. (7/17/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-410-wac-173-405;

Draft rule language (WAC 173-446) 11/08/21

This is the draft rule language for Chapter 173-446 WAC, Climate Commitment Act Program.

https://ecology.wa.gov/draft-rule-language-wac-173-446-11-08-21

Draft rule language for WAC 173-410 (WAC 173-405; WAC 173-410; WAC 173-415) 08/14/18

This is draft rule language for Chapter 173-410 WAC, Sulfite Pulping Mills. (8/14/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-410-wac-173-4-1

Draft rule language for WAC 173-415 (WAC 173-405; WAC 173-410; WAC 173-415) 07/17/18

This is draft rule language for Chapter 173-415 WAC, Primary Aluminum Plants. (7/17/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-415-wac-173-405;

Draft rule language (WAC 173-443) 1-27-23

This is the January 27, 2023 draft rule language for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-rule-language-wac-173-443-1-27-23

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 2/28/18

This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (2/28/18)

https://ecology.wa.gov/draft-rule-language-for-wac-173-400-wac-173-4-2

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 06/27/17

This is draft rule language for WAC 173-400 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-rule-language-for-wac-173-400-wac-173-4-1

Draft rule language (WAC 173-443) 9-14-22

This is the September 14, 2022 draft rule language for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-rule-language-wac-173-443-9-14-22

Draft rule language (WAC 173-443) 7-6-22

This is the July 6, 2022 draft rule language for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-rule-language-wac-173-443-7-6-22

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 05/24/17

This is draft rule language on 5/24/17 for WAC 173-455 Air Quality Fee Rule

https://ecology.wa.gov/draft-rule-language-for-wac-173-400-05-24-17-1

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 04/26/2017

This is draft rule language for WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-rule-language-for-wac-173-400-wac-173-455;

Draft rule language (WAC 173-460) 03/05/19

This is the draft rule language for Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.

https://ecology.wa.gov/draft-rule-language-wac-173-460-03-05-19