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  1. LII
  2. State Regulations
  3. Washington Administrative Code
  4. Title 197 - Ecology, Department of (Environmental Policy, Council on)
  5. Chapter 197-11 - SEPA rules

Chapter 197-11 - SEPA rules

  • State Regulations
  • Compare
  1. Part ONE - PURPOSE/AUTHORITY (§ 197-11-010 to 197-11-030)
  2. Part TWO - GENERAL REQUIREMENTS (§ 197-11-040 to 197-11-268)
  3. Part THREE - CATEGORICAL EXEMPTIONS AND THRESHOLD DETERMINATION (§ 197-11-300 to 197-11-390)
  4. Part FOUR - ENVIRONMENTAL IMPACT STATEMENT (EIS) (§ 197-11-400 to 197-11-460)
  5. Part FIVE - COMMENTING (§ 197-11-500 to 197-11-570)
  6. Part SIX - USING EXISTING ENVIRONMENTAL DOCUMENTS (§ 197-11-600 to 197-11-640)
  7. Part SEVEN - SEPA AND AGENCY DECISIONS (§ 197-11-650 to 197-11-680)
  8. Part EIGHT - DEFINITIONS (§ 197-11-700 to 197-11-799)
  9. Part NINE - CATEGORICAL EXEMPTIONS (§ 197-11-800 to 197-11-890)
  10. Part TEN - AGENCY COMPLIANCE (§ 197-11-900 to 197-11-955)
  11. Part ELEVEN - FORMS (§ 197-11-960 to 197-11-990)

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.


No prior version found.

State Regulations Toolbox



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