Montana Title 13. Elections § 13-19-104. Mail ballot elections not mandatory--when authorized--when prohibited--when county election administrator conducts

(a) a regularly scheduled federal, state, or county election;

(b) a special federal or state election, unless authorized by the legislature; or

(c) a regularly scheduled or special election when another election in the political subdivision is taking place at the polls on the same day.

(4)(a) Except as provided in subsection (4)(b), if more than one mail ballot election is being conducted in the political subdivision on the same day, the county election administrator shall conduct the elections.

(b) The requirement that a county election administrator shall conduct more than one mail ballot election on the same day does not apply to a mail ballot school bond election conducted by the trustees of any two or more school districts that have unified pursuant to 20-6-312 or that have created a joint board of trustees pursuant to 20-3-361.