You must make sure all certified employees, supervisors, and managers receive eight hours of refresher training at least every twelve months that covers:
Wash. Admin. Code § 296-843-20030
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-02-053, § 296-843-20030, filed 1/5/04, effective 5/1/04.