Mich. Comp. Laws § 480.12f
Except as provided in this act, each motor carrier shall, at least once every 12 months, review a copy of the driver's record from each state in which the driver held a license during the preceding year to determine whether that driver meets minimum requirements for safe driving or is disqualified to drive a commercial motor vehicle pursuant to 49 C.F.R. 391.15. In reviewing a driving record, the motor carrier shall consider any evidence that the driver has violated applicable provisions of the federal motor carrier safety regulations and the hazardous materials regulations. The motor carrier shall also consider the driver's accident record and any evidence that the driver has violated laws governing the operation of motor vehicles, and shall give great weight to violations, such as speeding, reckless driving, and operating while under the influence of alcohol or drugs, that indicate that the driver has exhibited a disregard for the safety of the public. A note setting forth the date upon which the review was performed and the name of the person who reviewed the driving record shall be included in the driver's qualification file.
MCL 480.12f