29-A M.R.S. §2323: Bicyclist and roller skier helmet use; passenger seat use

1. Use of helmet. A person under 16 years of age who is an operator or a passenger on a bicycle or an operator of roller skis on a public roadway or a public bikeway shall wear a helmet of good fit, positioned properly and fastened securely upon the head by helmet straps.

2. Passenger seat. A bicycle passenger must be seated properly in a bicycle passenger seat.