Wash. Admin. Code § 263-12-020
Statutory Authority: RCW 51.52.020. 10-14-061, § 263-12-020, filed 6/30/10, effective 7/31/10; 04-16-009, § 263-12-020, filed 7/22/04, effective 8/22/04; 00-23-021, § 263-12-020, filed 11/7/00, effective 12/8/00; 98-20-109, § 263-12-020, filed 10/7/98, effective 11/7/98; 91-13-038, § 263-12-020, filed 6/14/91, effective 7/15/91. Statutory Authority: RCW 51.41.060(4) and 51.52.020. 83-01-001 (Order 12), § 263-12-020, filed 12/2/82. Statutory Authority: RCW 51.52.020. 82-03-031 (Order 11), § 263-12-020, filed 1/18/82; Order 7, § 263-12-020, filed 4/4/75; Order 6, § 263-12-020, filed 9/29/72; Order 4, § 263-12-020, filed 6/9/72; General Order 2, § 3.1, filed 6/12/63; General Order 1, filed 3/23/60; General Order 3, § 3.1(b), Subsection (2), filed 10/29/65.