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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Rulemaking Proposal (WAC 173-228) 10/04/17

This is a rulemaking proposal (CR-102) for WAC 173-228 Sewage No Discharge Zones

https://ecology.wa.gov/rulemaking-proposal-wac-173-228-10-04-17

Rulemaking Proposal (WAC 173-337) 12/07/22

This is a rulemaking proposal (CR-102) for WAC 173-337 Safer Products Restrictions and Reporting.

https://ecology.wa.gov/rulemaking-proposal-wac-173-337-12-07-22

Rulemaking Proposal (WAC 173-201A) 10/18/21

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-10-18-21

Rulemaking Proposal (WAC 173-201A) 3/24/21

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-3-24-21

Rulemaking Proposal (WAC 173-201A) 07/30/19

This is a rulemaking proposal (CR-102) for WAC 173-201A multiple revisions to WQ Standards

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-07-30-19

Rulemaking Proposal (WAC 173-224) 03/16/21

This is a rulemaking proposal (CR-102) for WAC 173-224 Water Quality Permit Fees

https://ecology.wa.gov/rulemaking-proposal-wac-173-224-03-16-21

Rulemaking Proposal (WAC 173-340) 02/15/23

This is a rulemaking proposal (CR-102) for WAC 173-340, Model Toxics Control Act (MTCA) Cleanup Regulations.

https://ecology.wa.gov/rulemaking-proposal-wac-173-340-02-15-23

Rulemaking Proposal (WAC 173-323) 10/03/17

This is a rulemaking proposal (CR-102) for WAC 173-323 Grants and Loans.

https://ecology.wa.gov/rulemaking-proposal-wac-173-323-10-03-17

Rulemaking Proposal (WAC 173-407) 10/04/17

This is a rulemaking proposal (CR-102) 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/rulemaking-proposal-wac-173-407-20171004

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/rulemaking-proposal-wac-173-422-and-wac-173-441

Rulemaking Proposal (WAC 173-405; WAC 173-410; WAC 173-415) 11/07/18

This is a rulemaking proposal (CR-102 form) for WAC 173-405, Kraft Pulping Mills; WAC 173-410, Sulfite Pulping Mills; WAC 173-415, Primary Aluminum Plants.

https://ecology.wa.gov/rulemaking-proposal-wac-173-405;-wac-173-410;-wac

Rulemaking Proposal (WAC 173-400;401)02/05/18

This is the proposed rulemaking form (CR 102 form)

https://ecology.wa.gov/rulemaking-proposal-wac-173-400;-wac-173-401-02

Rulemaking proposal (WAC 173-219) Aug. 23, 2017

This is a rulemaking proposal (CR-102) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-proposal-wac-173-219-08-23-17

Rulemaking Proposal (WAC 173-201A) 07/18/23

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-07-18-23

Rulemaking Proposal (WAC 173-408) 10-30-23

This is a rulemaking proposal (CR-102) for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/rulemaking-proposal-wac-173-408-10-30-23

This is a rulemaking proposal (CR-102) for WAC 173-201A 02/15/24

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-02-15-24

Rulemaking Proposal (WAC 173-201A) 5/10/24

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-5-10-24

Rulemaking Proposal (WAC 173-400; WAC 173-401) 9-18-24

This is a rulemaking proposal (CR-102) for Chapter 173-400 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/rulemaking-proposal-wac-173-400;-wac-173-401-9-18-24

Rulemaking Proposal (WAC 173-201A) 09/17/2024

This is a rulemaking proposal (CR-102) for Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-09-17-2024

Rulemaking Proposal (WAC 173-339) 02/6/25

This is a rulemaking proposal (CR-102) for WAC 173-339 Title.

https://ecology.wa.gov/rulemaking-proposal-wac-173-339-01-30-25