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 Announcement (WAC 173-224) 06/07/22

This is a rulemaking announcement (CR-101) for WAC 173-224 Water Quality Permit Fees..

https://ecology.wa.gov/rulemaking-announcement-wac-173-224-06-07-22

Proposed rulemaking (WAC 173-566) 01/17/2019

This is the proposed rulemaking announcement (CR-102) Chapter 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rule-language-wac173-566

Rulemaking Announcement (WAC 173-186) 12/05/18

This is a rulemaking announcement (CR-101) for WAC 173-186 Oil spill contingency plan — railroad.

https://ecology.wa.gov/rulemaking-announcement-wac-173-186-12-05-18

Rulemaking Announcement (WAC 173-182) 01/02/19

This is a rulemaking announcement (CR-101) for WAC 173-182 Oil Spill Contingency Plan.

https://ecology.wa.gov/rulemaking-announcement-wac-173-182-01-02-19

Rulemaking Adoption Notice (WAC 173-566) 06/25/2019

This is a rulemaking adoption (CR-103) for WAC 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-566-06-25-201

Rulemaking Adoption Notice (WAC 173-323) 12/18/17

This is a rulemaking adoption (CR-103) for WAC 173-323 Grants and Loans.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-323-12-18-17

Rulemaking Adoption Notice (WAC 173-03) 11/15/17

This is a rulemaking adoption (CR-103) for WAC 173-03 Public Records.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-03-11-15-17

Rulemaking Announcement (WAC 173-340) 12/20/18

This is a rulemaking announcement (CR-101) for WAC 173-340, Model Toxics Control Act - Cleanup

https://ecology.wa.gov/rulemaking-announcement-wac-173-340-12-20-18

Rulemaking Adoption Notice (WAC 173-407) 02/21/18

This is a rulemaking adoption (CR-103) for WAC 173-407 Greenhouse Gas Mitigation Requirements and Emissions Performance Standard for Power Plants.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-407-02-21-18

Rulemaking Announcement (WAC 173-230) 06/22/18

This is a rulemaking announcement (CR-101) for WAC 173-230

https://ecology.wa.gov/rulemaking-announcement-wac-173-230-06-22-18

Rulemaking Adoption Notice (WAC 173-557) 01/27/15

This is a rulemaking adoption (CR-103) for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-557-01-27-15

Rulemaking Adoption Notice (WAC 173-455) 3-3-23

This is a rulemaking adoption notice (CR-103) for Chapter 173-455 WAC, Air Quality Fee Rule.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-455-3-3-23

Rulemaking Adoption Notice (WAC 173-201A) 1/23/19

This is a rulemaking adoption (CR-103) for WAC 173-201A Recreational Use Critera

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-1-23-19

Rulemaking Adoption Notice (WAC 173-201A) 08/01/16

This is a rulemaking adoption (CR-103) for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-08-01-16

Rulemaking Announcement (WAC 173-201A) 10/25/11

This is a rulemaking announcement (CR-101) for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/wac173-201a_-16-07

Proposed repeal of existing rule, Chapter 173-360 WAC, UST Regulations 01/24/18

This document lists the chapters of the Washington Administrative Code that are proposed to be repealed.

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-360a-01-24

Rainbow Trout Spawning Survey, (WAC 173-557; 173-555) 01/27/15

Rainbow Trout Spawning Survey, Spokane River Hydroelectric Project, FERC Project No. 2545, Parametrix, October 2003

https://ecology.wa.gov/rainbow-trout-spawning-survey-wac-173-557;-173-5

Rulemaking Adoption Notice (WAC 173-224) 06/29/23

This is a rulemaking adoption (CR-103) for WAC 173-224 Water Quality Permit Fees

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-224-06-29-23

Rulemaking Adoption Notice (WAC 173-50) 09/01/23

This is a rulemaking adoption (CR-103) for WAC 173-50 Accreditation of Environmental Laboratories.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-50-09-01-23

Water Quality Fees Rulemaking Announcement

This is a rulemaking announcement (CR-101) for WAC 173-224 Water Quality Permit Fees..

https://ecology.wa.gov/rulemaking-announcement-wac-173-224-8-7-2024