Wash. Admin. Code § 300-12-010
The purposes of certification of librarians are to:
[Statutory Authority: RCW 27.04.030(10) as amended in 1987. WSR 87-20-071 (Order 87-03), § 300-12-010, filed 10/6/87; Rules (part), filed 4/13/66; Rules (part), filed 3/16/60.]