Wash. Admin. Code § 458-20-15501
Statutory Authority: RCW 82.32.200 and 82.01.060. 13-06-015, § 458-20-15501, filed 2/25/13, effective 3/28/13. Statutory Authority: RCW 82.32.300 and 82.01.060(2). 09-01-088, § 458-20-15501, filed 12/16/08, effective 1/16/09.