Wash. Admin. Code § 220-350-050
[Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.020, 77.04.055, and 77.12.047. WSR 17-05-112 (Order 17-04), amended and recodified as § 220-350-050, filed 2/15/17, effective 3/18/17. Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.055, 77.12.045, and 77.12.047. WSR 12-23-016 (Order 12-267), § 220-16-330, filed 11/9/12, effective 12/10/12; Order 817, § 220-16-330, filed 5/29/69. Formerly WAC 220-16-030 (part).]