This guide is for general information only and is not legal advice. Laws change — verify current rules with your state DOT or a licensed attorney before relying on this for any legal matter. Read full disclaimer.
The rule
New York requires a bicycle helmet for any rider under the age of 14. The same rule extends to children carried as passengers in a child seat or trailer. Civil fine of up to $50 against the parent or guardian; first offense may be waived on proof of helmet purchase. Children under one year old may not be carried as passengers at all. See N.Y. Veh. & Traf. Law § 1238.
If you're 14 or older, New York doesn't require you to wear a helmet by state law. Riders under 14 (and any child carried as a passenger) must wear a helmet that meets the CPSC standard.
Cities can be stricter than the state floor, and bike-share systems often require helmets regardless of age. If you're renting or commuting in a major city, confirm the local rule before you ride.