Wash. Admin. Code § 296-17-865
No employer's experience modification factor shall increase or decrease by more than twenty-five percent during any one year, as calculated according to WAC 296-17-855. However, if an employer's experience modification factor is calculated to be below 1.00 without this twenty-five percent limitation and that employer had an experience modification factor greater than 1.3333 in the previous year, then the experience modification factor shall be set to 1.00.
Wash. Admin. Code § 296-17-865
Statutory Authority: RCW 51.16.035, 51.32.073, 51.08.010, and 51.04.020(1). 08-24-074, § 296-17-865, filed 12/1/08, effective 1/1/09; Order 77-27, § 296-17-865, filed 11/30/77, effective 1/1/78; Order 74-40, § 296-17-865, filed 11/27/74, effective 1/1/75; Order 73-22, § 296-17-865, filed 11/9/73, effective 1/1/74.