LA Const., Article IV, Section 14

When a vacancy occurs in the office of governor, the order of succession shall be (1) the elected lieutenant governor, (2) the elected secretary of state, (3) the elected attorney general, (4) the elected treasurer, (5) the presiding officer of the Senate, (6) the presiding officer of the House of Representatives, and then (7) as provided by law. The successor shall serve the remainder of the term for which the governor was elected. §15. Vacancy in Office of Lieutenant Governor