Wash. Admin. Code § 51-51-1507
Statutory Authority: RCW 19.27.031 and chapters 19.27 and 34.05 RCW. 13-04-068, § 51-51-1507, filed 2/1/13, effective 7/1/13. Statutory Authority: RCW 19.27.031 and 19.27.074. 10-03-098, § 51-51-1507, filed 1/20/10, effective 7/1/10.