Maine Constitution Art. V, Pt. 1, § 15. Temporary mental or physical disability of Governor

Section 15. Whenever the Governor is unable to discharge the powers and duties of that office because of mental or physical disability, the President of the Senate, or if that office is vacant, the Speaker of the House of Representatives, shall exercise the powers and duties of the office of Governor until the Governor is again able to discharge the powers and duties of that office, or until the office of Governor is declared to be vacant or until another Governor shall be duly qualified.

Whenever the Governor is unable to discharge the powers and duties of that office, the Governor may so certify to the Chief Justice of the Supreme Judicial Court, in which case and upon notice from the Chief Justice, the President of the Senate, or if that office is vacant, the Speaker of the House of Representatives, shall exercise the powers and duties of the office of Governor until such time as the Governor shall certify to the Chief Justice that the Governor is able to discharge such powers and duties and the Chief Justice shall so notify the officer who is exercising the powers and duties of the office of Governor.

When the Secretary of State shall have reason to believe that the Governor is unable to discharge the duties of that office, the Secretary of State may so certify to the Supreme Judicial Court, declaring the reason for such belief. After notice to the Governor, a hearing before the court and a decision by a majority of the court that the Governor is unable to discharge the duties of the office of Governor, the court shall notify the President of the Senate, or if that office is vacant the Speaker of the House of Representatives, of such inability and that officer shall exercise the functions, powers and duties of the office of Governor until such time as the Secretary of State or the Governor shall certify to the court that the Governor is able to discharge the duties of the office of Governor and the court, after notice to the Governor and a hearing before the court, decides that the Governor is able to discharge the duties of that office and so notifies the officer who is exercising the powers and duties of the office of Governor.

Whenever either the President of the Senate or Speaker of the House of Representatives shall exercise the office of Governor, the officer shall receive only the compensation of Governor, but the officer's duties as President or Speaker shall be suspended; and the Senate or House shall fill the vacancy resulting from such suspension, until the officer shall cease to exercise the office of Governor.