Wash. Rev. Code § 79.44.050
Upon the approval and confirmation of the assessment roll ordered by the proper authorities of any assessing district, the treasurer of such assessing district shall certify and forward to the chief administrative officer of the agency of state government occupying, using, or having jurisdiction over the lands, a statement of all the lots or parcels of land held or owned by the state and charged on such assessment roll, separately describing each such lot or parcel of the state's land, with the amount of the local assessment charged against it, or the proportionate amount assessed against the fee simple interest of the state, in case the land has been leased. The chief administrative officer upon receipt of such statement shall cause a proper record to be made in his or her office of the cost of such assessment upon the lands occupied, used, or under the jurisdiction of his or her agency.
No penalty shall be provided or enforced against the state, and the interest upon such assessments shall be computed and paid at the rate paid by other property situated in the same assessing district.
RCW 79.44.050