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.
Draft Rule Language (WAC 173-407) 03/31/17
This is draft rule language used in the stakeholder meeting for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities.
https://ecology.wa.gov/draft-rule-language-wac-173-407-20170331
Draft Rule Language (WAC 173-407) 04/11/17
This is draft rule language used for the informal comment period from Apr 13 to May 12 2017 for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities
https://ecology.wa.gov/draft-rule-language-wac-173-407-20170411
Draft Rule Language (WAC 173-407) 05/26/17
This is draft rule language used for informal comment period from May 26 to June 16, 2017 for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities
https://ecology.wa.gov/draft-rule-language-wac-173-407-20170526
Draft Rule Language (WAC 173-407) 07/17/17
This is draft rule language used for informal comment period from July 17 to July 28, 2017 for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities
https://ecology.wa.gov/draft-rule-language-wac-173-407-20170717
Draft rule language (WAC 173-400) 11/29/17
This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (11/29/17)
https://ecology.wa.gov/draft-rule-language-wac-173-400-11-29-17
Draft rule language (WAC 173-423; WAC 173-400) 04/19/22
This is the April 19, 2022 draft rule language for Chapter 173-423 WAC, Clean Vehicles Program and Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/draft-rule-language-wac-173-423-04-19-22
Draft rule language (WAC 173-400) 10/10/18
This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (10/10/18)
https://ecology.wa.gov/sru-alternative-emission-standard10_10_18_
Draft rule language (WAC 173-400) 12/04/18
This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (12/4/18)
https://ecology.wa.gov/draft-rule-language-wac-173-400-12-04-18
Draft rule language (WAC 173-423; WAC 173-400) 6-14-22
This is the June 14, 2022 draft rule language for Chapter 173-423 WAC, Clean Vehicles Program and Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/draft-rule-language-wac-173-423;-wac-173-400-6-14
Draft rule language (WAC 173-400) 01/24/19
This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (1/24/19)
https://ecology.wa.gov/draft-rule-language-for-wac-173-400-wac-173-400
Draft rule 10/18/17
Annotated rule changes to Chapter 173-400 WAC
https://ecology.wa.gov/draft-rule-wac-173-400;401-10-18-17
Draft rule (11/10/16)
Draft rule (11/10/16)
https://ecology.wa.gov/draft-rule-wac-173-400;401-11-10-16
Draft rule (12/06/16)
Draft rule (12/06/16)
https://ecology.wa.gov/draft-rule-wac-173-400;401-12-06-16
Draft rule (WAC 173-400;401) 12/20/16)
Draft rule 12/20/16)
https://ecology.wa.gov/draft-rule-wac-173-400;401-12-20-16
Draft rule 401 10/18/17
Annotated rule changes to Chapter 173-401 WAC
https://ecology.wa.gov/draft-rule-401-wac-173-400;401-10-18-17
Draft rule language (WAC 173-424) 01/27/22
This is the January 27, 2022 draft rule language for Chapter 173-424 WAC, Clean Fuels Program Rule.
https://ecology.wa.gov/draft-rule-language-wac-173-424-01-27-22
Draft rule language (WAC 173-400) 3-18-24
This is the March 18, 2024 draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/draft-rule-language-wac-173-400-3-18-24
Draft rule language (WAC 173-401) 3-18-24
This is the March 18, 2024 draft rule language for Chapter 173-401 WAC, Operating Permit Regulations.
https://ecology.wa.gov/draft-rule-language-wac-173-401-3-18-24
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