Michigan Constitution of 1963, Art. XII, § 1

Sec. 1.  Amendments to this constitution may be proposed in the senate or house of representatives.  Proposed amendments agreed to by two-thirds of the members elected to and serving in each house on a vote with the names and vote of those voting entered in the respective journals shall be submitted, not less than 60 days thereafter, to the electors at the next general election or special election as the legislature shall direct.  If a majority of electors voting on a proposed amendment approve the same, it shall become part of the constitution and shall abrogate or amend existing provisions of the constitution at the end of 45 days after the date of the election at which it was approved.