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The Environmental Permit Handbook is a website developed by the Department of Ecology that contains information about local, state and federal environmental permits, approvals, or licenses for Washington State in a handbook like format.

The Environmental Permit Handbook

  • Provides in-depth information about environmental permits, approvals and licenses.
  • Explains the "why" and "when" of each permit.
  • Has links to state and federal statutes authorizing each permit.

Open Handbook


This website replaces the publication titled 'Permit Handbook: Commonly Required Environmental Permits for Washington State' (Publication No. 90-29) which is no longer available for download in PDF format.

Please take time to read the site disclaimer.   If you are new to Washington State Environmental permits, we suggest you start at the Project Questionnaire which will guide you to permits you may need based on an interview process.

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    Department of Ecology      Environmental Permitting      Project Questionnaire      © ORA