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.

See more about this collection...

Received through January 18, 2012: Comments on Ecology's Fish Consumption Rates Technical Support Document (Version 1)

Comments received through January 18, 2012, in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).

https://ecology.wa.gov/20120118fcrcommentsforversion1

Received through January 18, 2012: Emailed form comments in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).

Emailed (form) comments received through January 18, 2012, in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).

https://ecology.wa.gov/20120118fcrformlettercommentsforversion1

Yard care poster W WA Spanish

Washington Waters Ours to Protect yard care poster W WA Spanish

https://ecology.wa.gov/yard-care-poster-w-wa-spanish

401 Water Quality Certifications for non-hydropower permits

We review projects needing federal approval to assure compliance with state water quality standards.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/non-hydropower-401-certifications

Shellfish aquaculture 401 certification

We modified our certification process for shellfish growers because of new federal requirements.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/shellfish-aquaculture

Cleanup Levels and Risk Calculation (CLARC)

CLARC's resources help you set contaminated site cleanup levels that comply with Washington law.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc

Cosmo Specialty Fibers

We regulate air, water, and hazardous waste at Cosmo Specialty Fibers in Cosmopolis.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/cosmo-specialty-fibers

McKinley Paper Company

We regulate water and hazardous waste at the McKinley Paper Co. mill in Port Angeles.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/mckinley-paper

Nippon Dynawave, Longview

We regulate the air, water, and hazardous waste activities at the Nippon Dynawave mill in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/nippon-dynawave-longview

Northwest Alloys, Addy

We regulate water and hazardous waste at Alcoa's Northwest Alloys in Addy.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/northwest-alloys-addy

Phillips 66 Refinery

We regulate water and hazardous waste activities at the Phillips 66 refinery in Ferndale.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/phillips-66-refinery

SeaPort Sound Terminal

We regulate water and hazardous waste activities at the SeaPort Sound Terminal in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/seaport-sound-terminal

Tesoro Refinery

We regulate water, hazardous waste, and cleanup at Tesoro Refining & Marketing Company in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/tesoro-refinery

WestRock, Longview

We regulate air, water, and hazardous waste at the WestRock mill in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/westrock-longview

Weyerhaeuser Lumber Mill, Longview

We regulate the water and hazardous waste activities at Weyerhaeuser's lumber mill in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/weyerhaeuser-lumber

WAC 173-50: Accreditation of Environmental Laboratories

This is the rulemaking page for Chapter 173-50 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-50

Clean Water Act: Section 401 Water Quality Certifications

Under the Clean Water Act, we help make sure projects, actions, and activities don't harm state waters.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification

Aquatic pesticide permits

Find information about the various aquatic pesticide permits used in our state.

https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits

Cruise ships in Washington waters

Formal agreement with cruise ship companies helps prevent pollution and protect marine waters.

https://ecology.wa.gov/regulations-permits/permits-certifications/cruise-ship-memorandum-of-agreement-mou

Industrial facility permits and regulation

We regulate air, water, and waste for most of the large industrial facilities in Washington.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits