The State Environmental Policy Act (SEPA) environmental review is usually started early in the application process. This review involves filling out an environmental checklist to help you determine if significant impacts may be caused by your proposal.
Usually county or city government staff can work with you to make an initial evaluation of whether the impacts are significant or not.
If your project has a National Environmental Policy Act (NEPA) document that has been adopted by the lead agency for SEPA compliance, please mark the box to indicate a SEPA decision letter (or SEPA determination) is attached, and attach the Notice of Adoption letter to your application.
If you have not started the SEPA review process, please contact your local government or go to https://ecology.wa.gov/regulations-permits/SEPA-environmental-review for more information about this process, the checklist, and forms.