As used in RCW 53.08.180 through 53.08.200, the term "employees" shall be as defined in RCW 41.48.020 and no distinction shall be made for the purposes of coverage under the social security act, between persons employed by a port district on a casual or temporary basis, or on a regular or steady basis, or between persons paid hourly wages and persons paid wages on a weekly, monthly, or other periodic basis. It being the intent of RCW 53.08.180 through 53.08.200 that all employees shall be entitled to the coverage of the federal social security act for work performed in the service of a port district, which is not covered by the state employees' retirement system.

Public employees' retirement system: Chapter 41.40 RCW.