Mich. Comp. Laws § 423.504

Sec. 4. After the review provided in section 3, an employee may obtain a copy of the information or part of the information contained in the employee's personnel record. An employer may charge a fee for providing a copy of information contained in the personnel record. The fee shall be limited to the actual incremental cost of duplicating the information. If an employee demonstrates that he or she is unable to review his or her personnel record at the employing unit, then the employer, upon that employee's written request, shall mail a copy of the requested record to the employee.