Wash. Admin. Code § 504-21-050
Statutory Authority: RCW 28B.30.150. 09-04-060, § 504-21-050, filed 2/2/09, effective 3/5/09; 01-19-027, § 504-21-050, filed 9/13/01, effective 10/14/01. Statutory Authority: RCW 28B.30.150 and 20 U.S.C. 1232 g. 95-07-043, § 504-21-050, filed 3/8/95, effective 4/8/95; Order 77-1, § 504-21-050, filed 5/2/77.