Senate Bill No. proposes an amendment to Article IV, Section 2 of the Montana Constitution, stipulating that only citizens of the United States who are 18 years of age or older and meet the registration and residence requirements are considered qualified electors. The bill removes the word "Any" and replaces it with "Only a," thereby clarifying that non-citizens are excluded from being qualified electors. Additionally, the bill outlines that individuals serving a felony sentence or deemed of unsound mind by a court are not eligible to vote.

The bill also includes provisions that require a two-thirds affirmative roll call vote from the legislature for passage, as mandated by Article XIV, Section 8 of the Montana Constitution. It establishes that the act will take effect upon approval by the electorate and will be presented to voters during the general election in November 2026, with a ballot that includes options for voting "YES" or "NO" on the constitutional amendment.