Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.658a

Sec. 658a. (1) In addition to the requirements of section 658,  1 a motorcycle shall be equipped with adequate seats and foot rests or pegs for each designated seating position. Foot rests or pegs must be securely attached. A passenger shall not ride on a motorcycle unless his or her feet can rest on the assigned foot rests or pegs except that this requirement does not apply to a person who is unable to reach the foot rests or pegs due to a permanent physical disability.

(2) A person who violates this section is responsible for a civil infraction.