The commissioner at the time of his appointment and qualification shall be a citizen of the United States and a resident of the State of West Virginia, shall have been a qualified voter in the state for a period of at least one year next preceding his appointment, and shall be not less than thirty years of age. No commissioner during his period of service as such shall hold any other office under the laws of this state or of the United States.
W. Va. Code § 17A-2-3
Commissioner of motor vehicles -- Qualifications; not to hold other office
Official source: West Virginia Legislature. Reproduced from public-domain West Virginia statutes; confirm against the official source for the current text. Not legal advice.