These rules are promulgated under the State Environmental Policy Act (SEPA), chapter 43.21C
RCW. RCW 43.21C.110
specifies the content of these rules and grants authority for promulgation. As required in RCW 43.21C.095
, these rules shall be given substantial deference in the interpretation of SEPA.
[Statutory Authority: RCW 43.21C.110. 84-05-020 (Order DE 83-39), § 197-11-010, filed 2/10/84, effective 4/4/84. Formerly chapter 197-10 WAC.]