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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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

Presentation (WAC 173-455) 10-13-22

This is a presentation for the 10/13/22 public hearing for Chapter 173-455 WAC, Air Quality Fee Rule.

https://ecology.wa.gov/presentation-wac-173-455-10-13-22

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 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

Preliminary draft toxics language and toxics table (WAC 173-201A) 9/30/14

This is the Preliminary draft toxics language and toxics table with footnotes at WAC 173-201A-240 for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/preliminary-draft-toxics-language-and-toxics-table

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

Preliminary draft SBEIS (WAC 173-201A) 9/30/14

This is the preliminary draft small business economic impact statement for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/preliminary-draft-sbeis-wac-173-201a-9-30-14

Preliminary draft rule language for implementation (WAC 173-201A) 9/30/14

This is the preliminary draft rule language for implementation tools at WAC 173-020, 420, 460, and 510(4) for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/preliminary-draft-rule-language-for-implementation

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

Preliminary draft Implementation Plan (WAC 173-201A) 9/30/14

This is the preliminary draft Implementation Plan to implement rule after it is adopted for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/preliminary-draft-implementation-plan-wac-173-201a-9-30-14

Preproposal Statement of Inquiry (CR-101) (WAC 173-360; WAC 173-360A) 03/23/2016

This is a rulemaking announcement (CR-101) for WAC 173-360 Underground Storage Tank (UST) Regulations.

https://ecology.wa.gov/pre-proposal-statement-of-inquiry-cr-101-wac-17

ROADMAP summary

ROAD MAP (Regional Operations and Maintenance Program) includes Western Washington and Southwest Washington Permittees

https://ecology.wa.gov/revisedroadmapsummary

Rosemere vs. Ecology & Clark County - Pollution Control Hearings Board Ruling - Jan. 5, 2011

The Pollution Control Hearings Board (PCHB) issued a ruling on Jan. 5, 2011 that the Agreed Order #7273 entered in between Ecology and Clark County is unlawful.

https://ecology.wa.gov/rosemerevecy_clarkcopchbrulingjanuary52011

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

Concrete Recycling

Explanation of Sand & Gravel General Permit Preliminary Draft Language about Concrete Recycling

https://ecology.wa.gov/rcpreliminarydraftpresentation2015

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

Preliminary Draft Rulemaking Language WAC 173-55

Draft rule language for WAC 173-55, Accreditation of Cannabis Laboratories, as of late July 2023.

https://ecology.wa.gov/preliminary-draft-rulemaking-language-wac-173-55

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

Workshop Presentation for Cannabis Lab Accreditation Rulemaking

Workshop slides from November and December 2023 meeting on updated preliminary draft rule language

https://ecology.wa.gov/presentation-cannabis-lab-accreditation