Mont. Code § 13-27-221
A statewide initiative filed under the provisions of this chapter may not be filed if it is substantially the same as a measure defeated by the voters in an election within the preceding 4 years.
§ 13-27-221, MCA
Applicability - Laws 2023, c. 647: Section 62 of Laws 2023, Ch. 647 provides:
"(1) [This act] applies to statewide ballot issues submitted to the secretary of state on or after [the effective date of this act].
"(2) [This act] applies to ballot issues submitted to the county election administrator for approval of the form of the petition required by 7-5-132 on or after [the effective date of this act].
"(3) [This act] applies to a petition prepared pursuant to 7-7-2224 that is filed with the election administrator under 7-7-2225 on or after [the effective date of this act]."