Wash. Admin. Code § 220-110-031
Statutory Authority: RCW 77.55.091(2), 77.12.047, and 77.04.020. 09-02-017 (Order 08-318), § 220-110-031, filed 12/29/08, effective 4/3/09. Statutory Authority: RCW 75.08.080, 75.20.100 and 75.20.330. 99-01-088 (Order 98-252), § 220-110-031, filed 12/16/98, effective 1/16/99. Statutory Authority: RCW 75.08.080. 97-13-001 (Order 97-84), § 220-110-031, filed 6/4/97, effective 7/5/97.