Please contact our environmental planner(s) at (509) 574-2300 or come into 128 N. 2nd Street, 4th Floor Courthouse, Yakima, WA 98901 to get more information. The SEPA process most often begins when you submit the first permit application for your proposal. You may be required to have a pre-application meeting to discuss your project, permit requirements, and the SEPA process. Not all projects are required to go through the SEPA process. Find out more about the SEPA process online.