Wash. Admin. Code § 392-100-060
As used in Title 392 WAC, the abbreviation:
[Statutory Authority: RCW 28A.03.030. WSR 90-11-027 (Order 90-07), § 392-100-060, filed 5/9/90, effective 6/9/90; WSR 87-10-012 (Order 87-4), § 392-100-060, filed 4/28/87.]