(1) The executive branch includes a governor, lieutenant governor, secretary of state, attorney general, superintendent of public instruction, and auditor. (2) Each holds office for a term of four years which begins on the first Monday of January next succeeding election, and until a successor is elected and qualified. (3) Each shall reside at the seat of government, there keep the public records of his office, and perform such other duties as are provided in this constitution and by law.

(1) The governor, lieutenant governor, secretary of state, attorney general, superintendent of public instruction, and auditor shall be elected by the qualified electors at a general election provided by law. (2) Each candidate for governor shall file jointly with a candidate for lieutenant governor in primary elections, or so otherwise comply with nomination procedures provided by law that the offices of governor and lieutenant governor are voted upon together in primary and general elections.

(1) No person shall be eligible to the office of governor, lieutenant governor, secretary of state, attorney general, superintendent of public instruction, or auditor unless he is 25 years of age or older at the time of his election. In addition, each shall be a citizen of the United States who has resided within the state two years next preceding his election. (2) Any person with the foregoing qualifications is eligible to the office of attorney general if an attorney in good standing admitted to practice law in Montana who has engaged in the active practice thereof for at least five years before election. (3) The superintendent of public instruction shall have such educational qualifications as are provided by law.

(1) The executive power is vested in the governor who shall see that the laws are faithfully executed. He shall have such other duties as are provided in this constitution and by law. (2) The lieutenant governor shall perform the duties provided by law and those delegated to him by the governor. No power specifically vested in the governor by this constitution may be delegated to the lieutenant governor. (3) The secretary of state shall maintain official records of the executive branch and of the acts of the legislature, as provided by law. He shall keep the great seal of the state of Montana and perform any other duties provided by law. (4) The attorney general is the legal officer of the state and shall have the duties and powers provided by law. (5) The superintendent of public instruction and the auditor shall have such duties as are provided by law.

(1) Officers of the executive branch shall receive salaries provided by law. (2) During his term, no elected officer of the executive branch may hold another public office or receive compensation for services from any other governmental agency. He may be a candidate for any public office during his term.

(1) If the office of lieutenant governor becomes vacant by his succession to the office of governor, or by his death, resignation, or disability as determined by law, the governor shall appoint a qualified person to serve in that office for the remainder of the term. If both the elected governor and the elected lieutenant governor become unable to serve in the office of governor, succession to the respective offices shall be as provided by law for the period until the next general election. Then, a governor and lieutenant governor shall be elected to fill the remainder of the original term. (2) If the office of secretary of state, attorney general, auditor, or superintendent of public instruction becomes vacant by death, resignation, or disability as determined by law, the governor shall appoint a qualified person to serve in that office until the next general election and until a successor is elected and qualified. The person elected to fill a vacancy shall hold the office until the expiration of the term for which his predecessor was elected.

All executive and administrative offices, boards, bureaus, commissions, agencies and instrumentalities of the executive branch (except for the office of governor, lieutenant governor, secretary of state, attorney general, superintendent of public instruction, and auditor) and their respective functions, powers, and duties, shall be allocated by law among not more than 20 principal departments so as to provide an orderly arrangement in the administrative organization of state government. Temporary commissions may be established by law and need not be allocated within a department.

(1) The departments provided for in section 7 shall be under the supervision of the governor. Except as otherwise provided in this constitution or by law, each department shall be headed by a single executive appointed by the governor subject to confirmation by the senate to hold office until the end of the governor's term unless sooner removed by the governor. (2) The governor shall appoint, subject to confirmation by the senate, all officers provided for in this constitution or by law whose appointment or election is not otherwise provided for. They shall hold office until the end of the governor's term unless sooner removed by the governor. (3) If a vacancy occurs in any such office when the legislature is not in session, the governor shall appoint a qualified person to discharge the duties thereof until the office is filled by appointment and confirmation. (4) A person not confirmed by the senate for an office shall not, except at its request, be nominated again for that office at the same session, or be appointed to that office when the legislature is not in session.

The governor shall at the beginning of each legislative session, and may at other times, give the legislature information and recommend measures he considers necessary. The governor shall submit to the legislature at a time fixed by law, a budget for the ensuing fiscal period setting forth in detail for all operating funds the proposed expenditures and estimated revenue of the state.

(1) Each bill passed by the legislature, except bills proposing amendments to the Montana constitution, bills ratifying proposed amendments to the United States constitution, resolutions, and initiative and referendum measures, shall be submitted to the governor for his signature. If he does not sign or veto the bill within 10 days after its delivery to him, it shall become law. The governor shall return a vetoed bill to the legislature with a statement of his reasons therefor. (2) The governor may return any bill to the legislature with his recommendation for amendment. If the legislature passes the bill in accordance with the governor's recommendation, it shall again return the bill to the governor for his reconsideration. The governor shall not return a bill for amendment a second time. (3) If after receipt of a veto message, two thirds of the members of each house present approve the bill, it shall become law. (4) (a) If the legislature is not in session when the governor vetoes a bill approved by two thirds of the members present, he shall return the bill with his reasons therefor to the secretary of state. The secretary of state shall poll the members of the legislature by mail and shall send each member a copy of the governor's veto message. If two thirds or more of the members of each house vote to override the veto, the bill shall become law. (b) The legislature may reconvene as provided by law to reconsider any bill vetoed by the governor when the legislature is not in session. (5) The governor may veto items in appropriation bills, and in such instances the procedure shall be the same as upon veto of an entire bill.

Whenever the governor considers it in the public interest, he may convene the legislature.

(1) The governor is commander in chief of the militia forces of the state, except when they are in the actual service of the United States. He may call out any part or all of the forces to aid in the execution of the laws, suppress insurrection, repel invasion, or protect life and property in natural disasters. (2) The militia forces shall consist of all able bodied citizens of the state except those exempted by law.

(1) If the governor elect is disqualified or dies, the lieutenant governor elect upon qualifying for the office shall become governor for the full term. If the governor elect fails to assume office for any other reason, the lieutenant governor elect upon qualifying as such shall serve as acting governor until the governor elect is able to assume office, or until the office becomes vacant. (2) The lieutenant governor shall serve as acting governor when so requested in writing by the governor. After the governor has been absent from the state for more than 45 consecutive days, the lieutenant governor shall serve as acting governor. (3) He shall serve as acting governor when the governor is so disabled as to be unable to communicate to the lieutenant governor the fact of his inability to perform the duties of his office. The lieutenant governor shall continue to serve as acting governor until the governor is able to resume the duties of his office. (4) Whenever, at any other time, the lieutenant governor and attorney general transmit to the legislature their written declaration that the governor is unable to discharge the powers and duties of his office, the legislature shall convene to determine whether he is able to do so. (5) If the legislature, within 21 days after convening, determines by two thirds vote of its members that the governor is unable to discharge the powers and duties of his office, the lieutenant governor shall serve as acting governor. Thereafter, when the governor transmits to the legislature his written declaration that no inability exists, he shall resume the powers and duties of his office within 15 days, unless the legislature determines otherwise by two thirds vote of its members. If the legislature so determines, the lieutenant governor shall continue to serve as acting governor. (6) If the office of governor becomes vacant by reason of death, resignation, or disqualification, the lieutenant governor shall become governor for the remainder of the term, except as provided in this constitution. (7) Additional succession to fill vacancies shall be provided by law. (8) When there is a vacancy in the office of governor, the successor shall be the governor. The acting governor shall have the powers and duties of the office of governor only for the period during which he serves.

(1) The governor may require information in writing, under oath when required, from the officers of the executive branch upon any subject relating to the duties of their respective offices. (2) He may require information in writing, under oath, from all officers and managers of state institutions. (3) He may appoint a committee to investigate and report to him upon the condition of any executive office or state institution.