Arkansas constitution
Article 6: executive department
Section 14

Whenever the office of Governor shall have become vacant by death, resignation, removal from office or otherwise, provided such vacancy shall not happen within twelve months next before the expiration of the term of office for which the late Governor shall have been elected, the President of the Senate or Speaker of the House of Representatives, as the case may be, exercising the powers of Governor for the time being, shall immediately cause an election to be held to fill such vacancy, giving, by proclamation, sixty days, previous notice thereof, which election shall be governed by the same rules prescribed for general elections of Governor as far as applicable; the returns shall be made to the Secretary of State, and the acting Governor, Secretary of State and Attorney General shall constitute a board of canvassers, a majority of whom shall compare said returns and declare who is elected; and if there be a contested election, it shall be decided as may be provided by law.