In any year in which no quadrennial unit proof test is required, an examination must be carried out by an accredited person or his authorized representative. Such examination must be made not later than the anniversary date of the quadrennial certification and must conform with the requirements of WAC 296-304-20003(4).
Wash. Admin. Code § 296-304-20005
Order 74-25, § 296-304-20005, filed 5/7/74.