Wash. Admin. Code § 220-52-010
Statutory Authority: RCW 75.08.080. 94-12-009 (Order 94-23), § 220-52-010, filed 5/19/94, effective 6/19/94; 88-12-025 (Order 88-28), § 220-52-010, filed 5/25/88, effective 8/22/88. Statutory Authority: RCW 75.08.080 and 75.58.040. 86-19-043 (Order 86-102), § 220-52-010, filed 9/12/86. Statutory Authority: RCW 75.08.080. 84-08-014 (Order 84-24), § 220-52-010, filed 3/27/84; Order 77-145, § 220-52-010, filed 12/13/77; Order 1258, § 220-52-010, filed 8/25/75; Order 857, § 220-52-010, filed 12/11/69; Order 807, § 220-52-010, filed 1/2/69, effective 2/1/69; subsections 1, 3-5, Orders 414, 256, filed 3/1/60; subsection 2, Orders 443, 256, filed 3/1/60.