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

[Statutory Authority: RCW 80.50.040(1). WSR 84-19-031 (Order 84-2), § 463-47-010, filed 9/14/84. Formerly chapter 463-46 WAC.]