Wash. Admin. Code § 197-11-050
(2) The lead agency shall be the agency with main responsibility for complying with SEPA's procedural requirements and shall be the only agency responsible for:
[Statutory Authority: RCW 43.21C.110. WSR 84-05-020 (Order DE 83-39), § 197-11-050, filed 2/10/84, effective 4/4/84.]