Michigan Compiled Laws, Chapter 4. Legislature § 4.263

Sec. 3. Unless legislation enacting a redistricting plan for the house of representatives and senate is approved on or before the deadline established in section 1,  1 a political party, the speaker of the house of representatives, the minority leader of the house of representatives, the majority leader of the senate, or the minority leader of the senate may file, on or after November 2 immediately following the deadline established in section 1, a petition or other pleadings or papers with the supreme court requesting that the supreme court prepare a redistricting plan for the senate and house of representatives in compliance with the redistricting guidelines set in section 1.