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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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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.
Determining whether SEPA is required
Guidance on whether a proposal needs environmental review under SEPA.
121 results 1 - 20 of 121   Next page