Wash. Admin. Code § 220-52-060
Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.055, 77.12.045, and 77.12.047. 12-23-016 (Order 12-267), § 220-52-060, filed 11/9/12, effective 12/10/12. Statutory Authority: RCW 75.08.080. 94-12-009 (Order 94-23), § 220-52-060, filed 5/19/94, effective 6/19/94; 91-10-024 (Order 91-22), § 220-52-060, filed 4/23/91, effective 5/24/91; 87-23-006 (Order 87-187), § 220-52-060, filed 11/6/87. Statutory Authority: RCW 75.08.080 and 75.58.040. 86-19-043 (Order 86-102), § 220-52-060, filed 9/12/86. Statutory Authority: RCW 75.08.080. 80-13-064 (Order 80-123), § 220-52-060, filed 9/17/80; 79-02-053 (Order 79-6), § 220-52-060, filed 1/30/79; Order 76-26, § 220-52-060, filed 1:45 p.m., 4/20/76; Order 945, § 220-52-060, filed 8/16/71; Order 807, § 220-52-060, filed 1/2/69, effective 2/1/69; subsections 1-7, Orders 414 and 256, filed 3/1/60.