Mich. Comp. Laws § 247.326: Permit; issuance requirements; revocation.

Sec. 6.

A permit shall not be issued unless all the requirements of this act, and of rules made pursuant to section 5, are met. A permit may be revoked by the highway authority issuing it if at any time the permitted object, use, or activity fails to meet the requirements of this act or rules made in accordance with section 5. This section does not apply to a permit issued by a city under the city motor vehicle racing act of 1981.