State Environmental Policy Act (SEPA): Revised Code of Washington (RCW) 43.21C.010 to 43.21C.914
SEPA Rules: Washington Administrative Code (WAC) 197-11-010 to 197-11-990
Lead agency: WAC 197-11-050
Categorical exemptions: WAC 197-11-305
Threshold determination: WAC 197-11-310 to 197-11-330
Environmental impact statement (EIS):
Type of EISs: WAC 197-11-405
Scoping: WAC 197-11-408
EIS format: WAC 197-11-425 to 197-11-435
EIS content: WAC 197-11-440
Comment period: WAC 197-11-500 to 197-11-570
Agency action: WAC 197-11-650 to 197-11-680
Stormwater permits: RCW 43.21C.0383
Washington Department of Ecology (WDOE)
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Washington has a State Environmental Policy Act (SEPA) that is similar to the National Environmental Policy Act (NEPA). SEPA requires the preparation of an environmental impact statement (EIS) whenever a governmental action may significantly affect the quality of the environment. SEPA gives agencies the ability to condition or deny a proposal due to identified likely significant adverse impacts. Washington's EIS requirements are similar to the federal rules, although the Washington Department of Ecology (WDOE) requires that all SEPA documents be submitted in electronic format through e-mail or on computer disc. See the national section ENVIRONMENTAL IMPACT STATEMENT for more information on NEPA requirements.
• Administration and enforcement. All required EISs should be submitted to the WDOE, or the appropriate lead agency (usually a local town or county board) for review and distribution.