How to renew your license: On-site designers and inspectors

Our Customer Service Counter has moved. The counter is located at 405 Black Lake Blvd, Olympia, WA 98502. Map and driving directions (

Save a trip! Many services are available online!

Things to know

  • License expires every 2 years on your birthday
  • You can renew 120 days before your license expires

Before you renew

  • Our renewal process has changed. As of March 15, 2017, you must answer criminal history questions and provide documents if needed.
  • On site wastewater designers: Have your required continuing education completed. You’ll certify this at renewal. If you were selected for audit, you’ll also need to upload your continuing education log and supporting documents.

Start renewal

What you'll need

Want to renew by mail?

Questions? Need help?

Contact us

Washington Healthcare Finder
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Access Washington – official state government website