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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Guidance for Marine Net Pen Aquaculture in Washington State

Proposed guidance for net pen aquaculture management and operations in Puget Sound and the Strait of Juan de Fuca.

https://ecology.wa.gov/guidance-for-marine-net-pen-aquaculture-in-washing

Carnival Splendor inspection report

This document is the wastewater inspection report for Carnival Splendor Cruise Line.

https://ecology.wa.gov/carnival-splendor-inspection-report

Silver Muse, SilverSea Cruises inspection report

This document is the wastewater discharges inspection report for Silver Muse, SilverSea Cruises Line.

https://ecology.wa.gov/silver-muse-silversea-cruises-inspection-report

401 certification process for aquaculture

A flowchart for shellfish growers to help them navigate the current Section 401 water quality certification and permitting process.

https://ecology.wa.gov/shellfish-aquaculture-401-flowchart

Car maintance fact sheet WQ

Washington Waters Ours to Protect car maintenance fact sheet WQ

https://ecology.wa.gov/car-maintenance-fact-sheet-wq

Car washing fact sheet English

Washington Waters Ours to Protect car washing fact sheet English

https://ecology.wa.gov/car-washing-fact-sheet-english

Car washing fact sheet Spanish

Washington Waters Ours to Protect car washing fact sheet Spanish

https://ecology.wa.gov/car-washing-fact-sheet-spanish

Car maintenance poster WQ

Washington Waters Ours to Protect car maintenance poster

https://ecology.wa.gov/car-maintenance-poster-wq

Septic fact sheet W WA

Washington Waters Ours to Protect septic fact sheet W WA

https://ecology.wa.gov/septic-fact-sheet-w-wa

Manure fact sheet W WA

Washington Waters Ours to Protect manure fact sheet W WA

https://ecology.wa.gov/manure-fact-sheet-w-wa

Dog poop fact sheet Spanish

Washington Waters Ourt to Protect dog poop fact sheet Spanish

https://ecology.wa.gov/dog-poop-fact-sheet-spanish

Car washing poster Spanish

Washington Waters Ours to Protect car washing poster Spanish

https://ecology.wa.gov/car-washing-poster-spanish

Septic poster W WA English

Washington Waters Ours to Protect septic poster W WA English

https://ecology.wa.gov/septic-poster-w-wa-english

Manure poster

Washington Waters Ours to Protect manure poster W WA

https://ecology.wa.gov/manure-poster-w-wa

Dog poop poster E WQ

Washington Waters Ours to Protect dog poop poster E WA

https://ecology.wa.gov/dog-poop-poster-e-wa

Tesoro Logistics Anacortes Facility

We regulate water and hazardous waste at the Tesoro Logistics operations in Anacortes.

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

U.S. Oil Refinery

We regulate water and hazardous waste at the U.S. Oil and Refining Co. oil refinery in Tacoma.

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

SEPA Supplemental Orca Checklist Guidance

This guidance helps applicants complete the SEPA Supplemental Orca Checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-supplemental-orca-checklist-guidanc

Matheson Tri-Gas, Anacortes

We regulate water and hazardous waste activities at the Linde hydrogen plant in Anacortes.

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

Puget Sound Nutrient General Permit

The opt-in Nutrient General Permit helps WWTPs reduce nutrient pollution in Puget Sound.

https://ecology.wa.gov/regulations-permits/permits-certifications/nutrient-permit