Mich. Comp. Laws § 476.10

Sec. 10. The commission shall supervise and regulate all motor carriers of general commodities and regulate the service and safety of operations of each motor carrier of general commodities. The commission may do any of the following: (a) Require the filing of annual and other reports, tariffs, schedules, and other data by motor carriers of general commodities where that information is considered by the commission to be necessary for the administration or enforcement, or both, of this act. (b) Supervise and regulate motor carriers of general commodities in all matters affecting the relation between the motor carriers and the public and between motor carriers. (c) Promulgate rules to promote safety upon the highways and the conservation of their use and to ensure that the provisions of this act are fully and completely carried out. The commission, by general order or otherwise, may promulgate rules in conformity with this act applicable to all motor carriers of general commodities, and do all things necessary to carry out and enforce this act.