Wash. Admin. Code § 468-66-020
Statutory Authority: Chapter 47.42 RCW and Title 23 Code of Federal Regulations part 750. 06-03-005, § 468-66-020, filed 1/4/06, effective 2/4/06. Statutory Authority: 1977 ex.s. c 151. 79-01-033 (DOT Order 10 and Comm. Order 1, Resolution No. 13), § 468-66-020, filed 12/20/78. Formerly WAC 252-40-015.