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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Cannabis Lab Accreditation Webinar Slides, 10-25-2018

Slide deck from outreach event about the draft legislative report on the accreditation of cannabis laboratories.

https://ecology.wa.gov/cannabis-labs-webinar-slide-deck-no-audio

State Environmental Policy Act (SEPA)

We provide information about the State Environmental Policy Act (SEPA).

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

SEPA lead agency contacts

Browse tables containing SEPA contacts at state and local agencies in Washington.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-lead-agency-contacts

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

SEPA checklist guidance, Section B: Recreation

Guidance for completing Recreation section for Part B of SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-12-recreation

Municipal stormwater permit compliance assurance program

We use a proactive approach to ensuring the permits are implemented and effective.

https://ecology.wa.gov/regulations-permits/compliance-enforcement/municipal-stormwater-compliance-assurance-program

State Emergency Response Commission (SERC)

State Emergency Response Commission implements the Emergency Planning and Community Right-to Know Act

https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act/state-emergency-response-commission

SEPA Review and Commenting Guidance

SEPA guidance for document reviewers.

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

2020-21 Project Awards: Chehalis River Basin Aquatic Species Restoration Plan

Descriptive list of state grant awards for aquatic habitat restoration projects in the Chehalis Basin

https://ecology.wa.gov/2020-21-asrp-project-list

Chapter 197-11 WAC (SEPA rules – expedited rulemaking)

This is the Rulemaking page for Chapter 197-11 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-197-11-sepa-rules

KeepingYourBeachClean

An infographic with tips on how to keep your beach clean.

https://ecology.wa.gov/beach-infographic-print-version

Pollution prevention services for medium and large businesses

Get pollution prevention technical assistance for your medium or large business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services/toxics-reduction-assistance

2025 Supplemental Operating & Capital Budget Request

Ecology's 2024 supplemental operating and capital budget request

https://ecology.wa.gov/2025supplementaloperatingcapitalrequest

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