Welcome to the on-line
edition of the SEPA Handbook. The focus of the handbook is to
provide guidance on the State Environmental Policy Act (SEPA).
We have provided explanations of the purpose and importance of
each step in the SEPA process, and tips on how to best complete
them. We have also included information on the history and
purpose of SEPA and its relationship with other associated
The SEPA Handbook is intended to be used in conjunction with the State Environmental Policy Act (Chapter 43.21C RCW) and the SEPA Rules (Chapter 197-11 WAC). Should a conflict be found at any time between the guidance in this handbook and either the SEPA Rules or the RCW, it should be understood that this handbook is intended as guidance only, and does not have the legal standing of the RCW or the Rule.
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