Mich. Comp. Laws § 207.640: Levy of tax; time period.

Sec. 20.

The tax imposed by this act shall not be levied after the earlier of December 31, 2039 or 30 days after all bonds, notes, or other obligations issued by a metropolitan authority formed under the regional convention facility authority act, 2008 PA 554, MCL 141.1351 to 141.1379, for purposes authorized under that act are retired.