Regulations & Permits

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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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Regulations & Permits

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

Regulations & Permits icon

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.

See more about this collection...
Chapter 173-443 WAC
On Dec. 10, 2020, Ecology adopted a new rule, Chapter 173-443 WAC, Hydrofluorocarbons.
https://ecology.wa.gov/Regulations-Permits/Laws-rules-rulemaking/Closed-rulemaking/WAC173-443
Chapter 173-444 WAC
This is the rulemaking page for Chapter 173-444 WAC, Clean Energy Transformation Rule.
https://ecology.wa.gov/Regulations-Permits/Laws-rules-rulemaking/Closed-rulemaking/WAC-173-444
Comments received from legislators (WAC 173-442; WAC 173-441) 7/22/16
These are comments from legislators.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Comments-recieved-from-legislators-(WAC-173-422;-W
Comments from the public (WAC 173-442; WAC 173-441) 07/21/16
These are comments from the public.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Comments-from-the-public-(WAC-173-442;-WAC-173-441
Comments from the regulated entities and associations (WAC 173-442; WAC 173-441) 07/22/16
These are comments from the regulated entities and associations.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Comments-from-the-regulated-entities-and-associati
Comments from the July 12, 2016, public hearing (written) (WAC 173-442; WAC 173-441) 7/12/16
Written comments from the July 12, 2016, public hearing.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Written-comments-from-the-July-12,-2016-public-hea
Written comments from the July 14, 2016, public hearing in Olympia (WAC 173-442; WAC 173-441)
Written comments from the July 14, 2016, public hearing.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Written-comments-from-the-July-14,-2016-public-hea
Rulemaking proposal language for (WAC 173-442)
This is proposed rule language for WAC 173-442.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-proposal-language-for-(WAC-173-442)-05
Rulemaking proposed language (WAC 173-441) 05/31/16
This is proposed rule language for WAC 173-441.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-proposed-language-(WAC-173-441)-05-31-1
Unofficial rule language - readable format (WAC 173-442) 05/31/16
This is Unofficial rule language - readable format for WAC 173-442.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Unofficial-rule-language-readable-format-(WAC-17
SEPA determination of non-significance and addendum (WAC 173-442; WAC 173-441) 09/15/16
This is the SEPA determination of non-significance and addendum for WAC 173-442 and WAC 173-441
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/SEPA-determination-of-non-significance-and-addendu
Secondary economic impacts analysis (REMI) (WAC 173-442; WAC 173-441) 09/15/16
This is the secondary economic impacts analysis (REMI) for WAC 173-442 and WAC 173-441.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Secondary-economic-impacts-analysis-(REMI)-(WAC-17
SEPA determination of non-significance (WAC 173-442; WAC 173-441) 01/05/16
This is the SEPA determination of non-significance for WAC 173-442 and WAC 173-441
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/SEPA-determination-of-non-significance-(WAC-173-44
SEPA checklist, including a staff report - non-project review form (WAC 173-442; WAC 173-441) 01/05/
This is the SEPA checklist for WAC 173-442 Clean Air Rule and WAC 173-441Reporting of Emissions of Greenhouse Gases rulemaking.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/SEPA-checklist,-including-a-staff-report-non-p-(1)
Rulemaking Announcement (WAC 173-442; WAC 173-441) 09/21/15
This is a rulemaking announcement for WAC 173-442 Clean Air Rule; WAC 173-441 Reporting of Emissions of Greenhouse Gases.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-Announcement-(WAC-173-442;-WAC-173-441)
Rulemaking Proposal (WAC 173-422 and WAC 173-441) 01/05/16
This is a rulemaking proposal (CR-102) for WAC 173-422 and WAC 173-441.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-Proposal-(WAC-173-422-and-WAC-173-441)
Rulemaking proposal (WAC 173-442; WAC 173-441) 05/31/16
This is a rulemaking proposal (CR-102) for WAC 173-442 Clean Air Rule; WAC 173-441 Reporting of Emissions of Greenhouse Gases
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-Announcement-(WAC-173-442;-WAC-173-(1)
Rulemaking proposal language for (WAC 173-441) 05/18/16
This is proposed rule language for WAC 173-441, Reporting of Emissions of Greenhouse Gases
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-proposal-language-for-(WAC-173-442;-WAC
Rulemaking proposal language for (WAC 173-442) 05/18/16
This is proposed rule language for WAC 173-442 Clean Air Rule.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Rulemaking-proposal-language-for-(WAC-173-442;-(1)
Adopted rule language for (WAC 173-442) 09/21/16
This is adopted rule language for WAC 173-442 Clean Air Rule.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Rulemaking/AQ/WAC173-442_441-(1)/Adopted-rule-language-for-(WAC-173-442)-09-21-16
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