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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Aquatic weed control technical assistance

We provide advice on identifying, monitoring, and managing invasive freshwater aquatic plants.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Aquatic-weed-control-technical-assistance

Stormwater permittee guidance & resources

Resources for general permit application, reporting on monitoring, and technical requirements.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Stormwater-permittee-guidance-resources

Underground Injection Control (UIC) program: Chapter 173-218 WAC

We regulate discharge of injection well fluids to protect against groundwater contamination.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Underground-injection-control-program

Combined sewer overflows

We're working to control combined sewer overflows to keep water clean.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Combined-Sewer-Overflows

EPA Vessel General Permit

Find out about the EPA Vessel General Permit and tap into helpful resources.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/EPA-vessel-general-permit-graywater

Certified Erosion & Sediment Control Lead

Find a Certified Erosion & Sediment Control Lead or learn how to become one.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Certified-erosion-sediment-control

Fresh Fruit Packing General Permit

Find out about the Fresh Fruit Packing General Permit and get helpful resources.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Fresh-fruit-packing-general-permit

Water quality individual permit guidance

Guidance and resources for individual wastewater permits; limit pollution, maintain water quality.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-guidance

Boatyard General Permit

This permit protects marine waters from toxics that can get into stormwater runoff from boatyards.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Boatyard-general-permit

Bridge & Ferry Terminal Washing Permit

This permit protects water from cleaning and painting activities at bridges and ferry terminals.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Bridge-and-Ferry-Terminal-Washing-Permit

Environmental laboratory accreditation

Learn how we accredit environmental laboratories and where to find them.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Laboratory-Accreditation

Stormwater general permits

We issue permits to protect lakes, rivers, and saltwater from polluted stormwater runoff.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Stormwater-general-permits

Water Treatment Plant General Permit

We regulate drinking water facilities through the use of this permit.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Water-treatment-plants

Winery general permit

The winery general permit helps prevent possible pollution problems from winery wastewater.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Winery-permit

Water quality permit database — PARIS

Our PARIS database lets you access water quality permits, discharge-monitoring reports, and more.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-database

Stormwater Action Monitoring

Western Washington stormwater permittees cooperatively monitor permit effectiveness through SAM.

https://ecology.wa.gov/Regulations-Permits/Reporting-requirements/Stormwater-monitoring/Stormwater-Action-Monitoring

Sand & Gravel General Permit history

Find historical information about our Sand and Gravel General Permit.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Sand-Gravel-General-Permit/Sand-Gravel-General-Permit-history

Guidance for contaminated water on construction sites

Information on how to manage contaminated water on construction sites.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Stormwater-permittee-guidance-resources/Contaminated-water-on-construction-sites

Applying for laboratory accreditation

Learn specific details on how laboratories may seek and maintain accreditation in Washington.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Laboratory-Accreditation/Applying-for-laboratory-accreditation

WQWebPortal guidance

Learn how to submit your permit documents electronically through the WQWebPortal.

https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-guidance/WQWebPortal-guidance

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