Joint Rule 10-140. Voting on bills -- constitutional amendments. (1) A bill may not become a law except by vote of the constitutionally required majority of all the members present and voting in each house (Montana Constitution, Art. V, Sec. 11(1)). On final passage, the vote must be taken by ayes and noes and the names of those voting entered on the journal (Montana Constitution, Art. V, Sec. 11(2)).
(2) Any vote in one house on a bill proposing an amendment to The Constitution of the State of Montana under circumstances in which there exists the mathematical possibility of obtaining the necessary two-thirds vote of the Legislature will cause the bill to progress as though it had received the majority vote.
(3) This rule does not prevent a committee from tabling a bill proposing an amendment to The Constitution of the State of Montana.