Mich. Comp. Laws § 600.549h

Sec. 549h. If the county of Barry approves the reformation of the fifth judicial circuit pursuant to law, and the county of Eaton approves the creation of the fifty-sixth judicial circuit pursuant to law, the fifty-sixth judicial circuit consists of the county of Eaton and has 1 judge effective January 1, 1991. Subject to section 550, this judicial circuit may have 1 additional judge effective January 1, 1991.