Wash. Rev. Code § 72.01.280
The superintendent of each public institution and the assistant physicians, steward, accountant and chief engineer of each hospital for the mentally ill may be furnished with quarters, household furniture, board, fuel, and lights for themselves and their families, and the secretary may, when in his or her opinion any public institution would be benefited by so doing, extend this privilege to any officer at any of the public institutions under his or her control. The words "family" or "families" used in this section shall be construed to mean only the spouse and dependent children of an officer. Employees may be furnished with quarters and board for themselves. The secretary shall charge and collect from such officers and employees the full cost of the items so furnished, including an appropriate charge for depreciation of capital items.
RCW 72.01.280