When is a helmet required by law to be worn by ATV riders?

Helmet laws for ATV riders vary by state and country. In many regions, helmets are required for riders under a certain age, typically ranging from 16 to 18 years old, while some areas mandate helmets for all riders regardless of age. It's essential to check local regulations to determine specific requirements, as laws can differ significantly based on location. Always prioritize safety by wearing a helmet when riding an ATV, regardless of legal requirements.