Michigan constitution
Article IV
Section 12

The concurrent resolution may amend the salary and expense determinations of the state officers compensation commission to reduce the salary and expense determinations by the same proportion for members of the legislature, the governor, the lieutenant governor, the attorney general, the secretary of state, and the justices of the supreme court. The legislature shall not amend the salary and expense determinations to reduce them to below the salary and expense level that members of the legislature, the governor, the lieutenant governor, the attorney general, the secretary of state, and the justices of the supreme court receive on the date the salary and expense determinations are made. If the salary and expense determinations are approved or amended as provided in this section, the salary and expense determinations shall become effective for the legislative session immediately following the next general election. The commission shall meet each 2 years for no more than 15 session days. The legislature
shall implement this section by law.