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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Hazardous waste service providers

Learn how your business can hire a waste service provider to handle and dispose of your dangerous waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/hazardous-waste-service-provider

Stormwater Action Monitoring communications

You can find SAM Booklet, fact sheets and videos on this page.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/communications

Environmental impact statement process

Overview about Environmental Impact Statements process under SEPA.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/environmental-impact-statements

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

Dangerous waste permits

Facilities that store, treat, or dispose of dangerous waste must have a dangerous waste permit.

https://ecology.wa.gov/regulations-permits/permits-certifications/dangerous-waste-permits

Environmental laboratory accreditation

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

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation

North Pacific Paper Corporation (NORPAC)

We regulate the water and hazardous waste activities at the NORPAC paper mill in Longview.

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

Regulatory guidance for oil industry

Spills reporting and state requirements for Class 1-4 facilities, vessels, railroads, and pipelines.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-oil-industry

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

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

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

Choosing an analytical laboratory

Take these steps and consider what you need when choosing an environmental laboratory.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/how-to-choose-an-analytical-laboratory

Underground storage tank closures

Important information about closing your underground storage tanks.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/ust-owner-and-operator-resources/underground-storage-tank-closures

Quality assurance manual guidance for environmental labs

This guidance can help you write or review a quality assurance manual for your lab.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/laboratory-quality-assurance-manual-checklist

SEPA subject index

References to SEPA topics in rule and statute.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-subject-index

Clean Water Act updated analytical methods

Learn about updates to approved analytical methods for testing non-potable water.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/methods-update-rule

Proficiency testing requirements

Six proficiency testing sample providers are approved by our laboratory accreditation program.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/proficiency-testing-providers