Wash. Rev. Code § 50.04.290
"Employment office" means a free public employment office, or branch thereof, operated by this or any other state as a part of a state controlled system of public employment offices, or by a federal agency or any agency of a foreign government charged with the administration of an unemployment compensation program or free public employment offices. All claims for unemployment compensation benefits, registrations for employment, and all job or placement referrals received or made by any of the employment offices as above defined and pursuant to regulation of the commissioner subsequent to December 31, 1941, are hereby declared in all respects to be valid. The commissioner is authorized to make such investigation, secure and transmit such information, make available such services and facilities and exercise such of the other powers provided herein with respect to the administration of this title as he or she deems necessary or appropriate to facilitate the administration of any state or federal unemployment compensation or public employment service law and in like manner to accept and utilize information, services, and facilities made available to the state by the agency charged with the administration of any such unemployment compensation or public employment service law. Any such action taken by the commissioner subsequent to December 31, 1941, is hereby declared to be in all respects valid.
RCW 50.04.290