These rules are promulgated under RCW 43.21C.120 (the State Environmental Policy Act) and chapter 197-11 WAC (SEPA rules).

[Statutory Authority: RCW 43.21C.120 and 43.21C.135. WSR 84-13-037 (Order DE 84-21), § 173-802-010, filed 6/15/84. Formerly chapter 173-801 WAC.]