Wash. Admin. Code § 415-104-3200
The basic monthly rate of compensation paid by an employer to a member for services rendered is basic salary in Plan I. "Basic monthly rate" means the rate of salary or wages attached to a position excluding overtime or special salary or wages.
[Statutory Authority: RCW 41.50.050 and 41.50.055. WSR 97-01-016, § 415-104-3200, filed 12/6/96, effective 1/6/97.]