SDCL § 49-1-5: Vacancies in office of commissioner--Appointment by Governor--Term of appointment.

If a vacancy occur in the office of Public Utilities Commissioner from death, resignation, or otherwise, the Governor of the state shall make a temporary appointment to fill such vacancy, but the person so appointed shall hold such office only until the next general election and until his successor is elected and qualified. Notwithstanding such appointment, there shall be chosen at the next general election after such vacancy occurs in such office, a public utilities commissioner to fill such vacancy, who shall hold his office only for the unexpired term of the person originally elected thereto.