Washington Constitution Art. 3, § 10. Vacancy in Office of Governor

In case of the removal, resignation, death or disability of the governor, the duties of the office shall devolve upon the lieutenant governor; and in case of a vacancy in both the offices of governor and lieutenant governor, the duties of the governor shall devolve upon the secretary of state. In addition to the line of succession to the office and duties of governor as hereinabove indicated, if the necessity shall arise, in order to fill the vacancy in the office of governor, the following state officers shall succeed to the duties of governor and in the order named, viz.: Treasurer, auditor, attorney general, superintendent of public instruction and commissioner of public lands. In case of the death, disability, failure or refusal of the person regularly elected to the office of governor to qualify at the time provided by law, the duties of the office shall devolve upon the person regularly elected to and qualified for the office of lieutenant governor, who shall act as governor until the disability be removed, or a governor be elected; and in case of the death, disability, failure or refusal of both the governor and the lieutenant governor elect to qualify, the duties of the governor shall devolve upon the secretary of state; and in addition to the line of succession to the office and duties of governor as hereinabove indicated, if there shall be the failure or refusal of any officer named above to qualify, and if the necessity shall arise by reason thereof, then in that event in order to fill the vacancy in the office of governor, the following state officers shall succeed to the duties of governor in the order named, viz.: Treasurer, auditor, attorney general, superintendent of public instruction and commissioner of public lands. Any person succeeding to the office of governor as in this section provided, shall perform the duties of such office only until the disability be removed, or a governor be elected and qualified; and if a vacancy occur more than thirty days before the next general election occurring within two years after the commencement of the term, a person shall be elected at such election to fill the office of governor for the remainder of the unexpired term.