Regulations & Permits

We oversee many state and federal laws designed to protect Washington's land, air, and water. Rules and regulations that direct state agencies, local governments, businesses, and others on how to comply with relevant laws are compiled in the Washington Administrative Code. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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State Environmental Policy Act (SEPA)

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

SEPA document templates (forms)

SEPA checklist with guidance plus other suggested templates for SEPA notices.

Ecology as SEPA lead agency

For some proposals, we lead or co-lead the environmental review.

SEPA contacts

SEPA contacts at state and local agencies in Washington.

SEPA contacts

State Agencies

City agency SEPA contacts

We have provided a list of city SEPA contacts.

SEPA Frequently Asked Questions

SEPA questions and answers.

SEPA guide for project applicants

SEPA guidance for private proponents.

SEPA Guide for lead agencies

SEPA guidance for lead agencies.

Grays Harbor terminal expansion environmental reviews

The current status of environmental reviews for two oil-related proposals in Grays Harbor.

SEPA Guidance on Categorical Exemptions

Guidance on SEPA exemptions.

Lead agency determination and responsibilities

SEPA guidance for determining lead agency and evaluating the proposal.

SEPA Guidance for Nonproject proposals

Completing SEPA review for "nonproject" proposals.

Revising and adopting existing documents

Guidance for using existing SEPA documents

SEPA guidance on appeal process

SEPA guidance on administrative and judicial appeals

Imperium expansion proposal

Imperium Terminal Services proposed expanding its existing transport facility in Hoquiam.

Contanda expansion proposal

Contanda, formerly Westway Terminal, proposed an expansion of the Grays Harbor methanol terminal.

SEPA checklist guidance, Section A: Background

Guidance helps applicants complete SEPA part A environmental checklist.

SEPA checklist guidance, Section B: Environmental Elements

Checklist guidance Part B Environmental Elements

SEPA checklist guidance, Section C: Signature

Guidance for SEPA environmental checklist Part C.

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