Compiled Laws, Chapter 168. Michigan Election Law § 168.413a

Sec. 413a. (1) Any incumbent circuit court judge may become a candidate in the primary election for the office of which he or she is an incumbent by filing with the secretary of state an affidavit of candidacy not less than 134 days before the date of the primary election. However, if an incumbent judge of the circuit court was appointed to fill a vacancy and the judge entered upon the duties of office less than 137 days before the date of the primary election but before the fifteenth Tuesday before the primary election, the incumbent judge may file the affidavit of candidacy not more than 3 days after entering upon the duties of office.

(2) The affidavit of candidacy must contain statements that the affiant is an incumbent circuit court judge for the circuit in which election is sought, that he or she is domiciled within the circuit, and that he or she will not attain the age of 70 by the date of election, and must contain a declaration that he or she is a candidate for election to the office of circuit court judge.