Helmet requirements depend on your age and where you live
Whether you must wear a helmet on a bicycle is determined by state law, and the rules vary widely. Some states require all riders to wear one. Others require helmets only for children under a certain age—often 16 or 18—and leave the choice to adults. A few states have no statewide helmet law at all, though individual cities or counties within those states may have their own rules. Your location matters more than anything else.
Even where helmets are not legally required, wearing one reduces the risk of head injury in a crash. But this guide focuses on what the law says you must do, not what doctors recommend.
Key Takeaways
- About half of U.S. states require all bicycle riders to wear helmets; the other half require helmets only for riders under a certain age, usually 16 or 18.
- A few states have no statewide helmet law, but local ordinances in cities or counties may still require one.
- The penalty for riding without a required helmet is typically a fine of $25 to $100, though enforcement varies by location.
- If you are unsure about your state's law, your local police department or city bicycle coordinator can tell you what applies where you ride.
States with universal helmet laws for all ages
About 21 states require every bicycle rider, regardless of age, to wear a helmet. These include California, Connecticut, Delaware, Georgia, Hawaii, Illinois, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oregon, Rhode Island, and Tennessee.
In these states, the law applies to you whether you are 8 or 80. There is no age exemption. If you ride without a helmet, you can be stopped and fined. The fine amount varies by state—typically between $25 and $100—but the requirement itself is the same across all riders.
States with age-based helmet requirements
About 29 states require helmets only for riders under a certain age. The cutoff age is most commonly 16 or 18, though a few states use 14 or 15. In these states, once you reach the age threshold, you are no longer required by law to wear a helmet, though you can choose to.
Examples include Arizona (under 18), Colorado (under 18), Florida (under 16), Indiana (under 18), Iowa (under 18), Kansas (under 18), Kentucky (under 18), Michigan (under 19), Minnesota (under 18), Montana (under 18), Ohio (under 18), Pennsylvania (under 12), Texas (under 18), Utah (under 18), Virginia (under 14), Washington (under 16), West Virginia (under 18), Wisconsin (under 18), and Wyoming (under 18). Check your specific state's law, because the age cutoff is not uniform.
States with no statewide helmet law
A handful of states—including Alabama, Alaska, Arkansas, Idaho, Maine, New Hampshire (which has a universal law but with a notable exception for riders 16 and older on certain roads), Oklahoma, and South Dakota—have no statewide bicycle helmet requirement. However, this does not mean helmets are never required where you live.
Many cities and counties within these states have passed their own local helmet ordinances. For example, some municipalities in states without statewide laws still require helmets for all riders or for children under 18. Before you assume you are not required to wear one, check with your city or county government or your local police department.
What happens if you ride without a required helmet
If you are caught riding without a helmet where one is required, the typical penalty is a fine. The amount varies by state and sometimes by locality—usually between $25 and $100 for a first offense. Some jurisdictions may impose higher fines for repeat violations.
In rare cases, riding without a required helmet can affect liability in a crash. If you are injured and the other party's insurance company learns you were not wearing a helmet where required, they may argue you were partly at fault and reduce your compensation. This is another reason to follow the law where you live, beyond avoiding a ticket.
How to find out what applies where you ride
The easiest way to know your local helmet law is to contact your city or county government directly. Most cities have a bicycle coordinator or a transportation department that can answer the question in one call or email. You can also call your local police department's non-emergency line and ask.
If you ride in multiple states or counties, you may need to check the rules for each location. Some riders keep a straightforward note on their phone listing the helmet requirements for the places they ride most often. This is especially useful if you commute across a state or county line.
Helmet standards and what makes a helmet legal
If you are required to wear a helmet, it must meet a safety standard. In the United States, the standard is set by the Consumer Product Safety Commission (CPSC). A helmet that meets the CPSC standard will have a label inside saying so. Most helmets sold in bike shops meet this standard.
You do not need a special "legal" helmet—any helmet that meets the CPSC standard satisfies the law. The standard is the same across all states. If you already own a helmet, check the inside label to confirm it meets CPSC standards. If it does, it is legal to wear anywhere in the country.
Frequently Asked Questions
Do I have to wear a helmet if I am riding on a bike path instead of the street?
The law usually does not distinguish between bike paths and streets. If a helmet is required in your state or city, it is required on any bicycle, regardless of where you are riding. Check your local law to be sure, but most ordinances explore to all bicycle riding.
What if I am riding a scooter or skateboard instead of a bicycle?
Bicycle helmet laws explore only to bicycles. Scooters, skateboards, and other devices may have their own separate laws or no law at all. Check your local ordinance for rules specific to the device you are using.
Can I be fined if a child I am supervising rides without a helmet?
In most states, the child can be fined, and in some cases the parent or guardian may also face a fine or citation. The responsibility usually falls on the rider, but some jurisdictions hold adults accountable for children in their care. Check your local law.
Does my helmet have to be fastened with the chin strap?
Most helmet laws require the helmet to be worn and fastened. A helmet sitting on your head without the chin strap fastened typically does not satisfy the legal requirement. Fasten the strap to be compliant with the law and to get the safety benefit of wearing one.
What if my state has no helmet law but I want to know if my city does?
Contact your city or county clerk's office or search your local municipal code online. Many cities post their bicycle ordinances on their websites. You can also call your local police department's non-emergency line and ask about helmet requirements in your area.