Wash. Admin. Code § 131-47-110
Statutory Authority: Chapter 28B.50 RCW. 98-15-003, § 131-47-110, filed 7/2/98, effective 8/2/98. Statutory Authority: Chapters 28A.610 and 28B.50 RCW and RCW 28B.50.915. 93-19-079, § 131-47-110, filed 9/15/93, effective 10/16/93.