Mich. Comp. Laws § 339.5723

Sec. 723. (1) An individual who is employed as a fire alarm specialty apprentice technician must register with the board on a form provided by the board within 30 days after the date he or she is employed. (2) The department shall issue a certificate of registration to an individual seeking registration if it receives satisfactory proof of the individual's participation in a bona fide apprenticeship training program approved by the board. (3) The ratio of fire alarm specialty technicians to registered fire alarm specialty apprentice technicians shall be on the basis of 1 fire alarm specialty technician to 2 registered fire alarm specialty apprentice technicians. The department or an enforcing agency shall enforce the ratio on a jobsite basis.