Wash. Admin. Code § 246-358-040
(1) Conditions may exist in operations that a state standard will not have practical use. The operator may request a variance. The director of the department of labor and industries may issue a variance from the requirements of the standard when another means of providing equal protection is provided.
The substitute means must provide equal protection in accordance with the requirements of chapters 49.17 RCW and 296-900 WAC, administrative rules.
(2) A temporary variance may be requested under chapter 296-900 WAC, administrative rules, when an operator cannot comply with new requirements by the effective date(s) in this chapter because:
[Statutory Authority: Chapter 70.114A RCW and RCW 43.70.334 through 43.70.340. WSR 15-13-091, § 246-358-040, filed 6/15/15, effective 7/16/15. Statutory Authority: RCW 70.114A.065 and 70.114A.110. WSR 00-06-082, § 246-358-040, filed 3/1/00, effective 3/1/00.]