Motorcycle Helmet Laws: How They Affect Your Injury Claim

Every year, thousands of motorcyclists face a devastating reality after a crash: even when another driver is entirely at fault, the question of whether they were wearing a helmet can become the centerpiece of their injury claim. Insurance companies routinely exploit helmet use—or the lack of it—to reduce or deny compensation to injured riders.

Whether you were wearing a helmet and suffered serious injuries, or you were riding without one in a state that permits it, this guide covers how helmet laws affect your motorcycle accident injury claim and what legal strategies exist to protect your rights.

What Are the Motorcycle Helmet Laws Across the United States?

Helmet laws vary dramatically from state to state. As of 2025, they fall into three categories: universal helmet laws, partial helmet laws, and no helmet laws at all.

Universal Helmet Law States

Nineteen states plus the District of Columbia require every motorcycle rider and passenger to wear a DOT-approved helmet regardless of age or insurance status: Alabama, California, Georgia, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New York, North Carolina, Oregon, Tennessee, Vermont, Virginia, Washington, and West Virginia.

In these states, riding without a helmet is a traffic violation. If you are injured while helmetless, the at-fault party’s insurer will almost certainly argue that your failure to comply with the law contributed to the severity of your injuries.

Partial Helmet Law States

Twenty-eight states have partial helmet laws requiring helmets for riders under a certain age:

• Under 18: Arizona, Colorado, Connecticut, Florida, Hawaii, Idaho, Indiana, Kansas, Kentucky, Maine, Minnesota, Montana, New Mexico, North Dakota, Ohio, Oklahoma, Rhode Island, South Carolina, South Dakota, Utah, Wisconsin, Wyoming
• Under 21: Arkansas, Delaware, Michigan, Pennsylvania, Texas

Some states attach additional conditions. Florida allows riders over 21 to ride helmetless only if they carry at least $10,000 in medical insurance coverage. Texas and Michigan have similar insurance requirements. An adult rider who legally chose not to wear a helmet may have stronger footing in an injury claim than someone who violated an age-based mandate.

States With No Helmet Laws

Three states—Illinois, Iowa, and New Hampshire—have no motorcycle helmet requirements. However, “no law” does not mean “no consequences” for your injury claim. Even in these states, insurers can and do raise helmet use during settlement negotiations and litigation.

What Are the DOT, Snell, and ECE Helmet Certification Standards?

When helmet use becomes an issue in a claim, the type and certification of your helmet matters. If your helmet lacks legitimate certification, the defense may treat it as the equivalent of wearing no helmet at all.

DOT (FMVSS 218)

The DOT standard (Federal Motor Vehicle Safety Standard No. 218, 49 CFR § 571.218) is the minimum legal requirement for helmets sold in the United States, covering impact absorption, penetration resistance, and retention system strength. Manufacturers self-certify their helmets, though NHTSA conducts periodic compliance testing on helmets pulled from store shelves.

Snell Memorial Foundation

Snell certification is voluntary and significantly more rigorous than DOT requirements, including additional tests for face shield penetration, chin bar strength, and varied impact scenarios. Every Snell-certified helmet meets or exceeds both DOT and ECE standards.

ECE 22.06

The latest international standard, ECE 22.06, took effect in January 2024 and is the most comprehensive helmet safety standard currently in use. Unlike DOT, it requires independent third-party testing and includes oblique impact tests to evaluate a helmet’s ability to manage rotational forces—a leading cause of traumatic brain injuries.

Wearing a DOT-, Snell-, or ECE-certified helmet makes it significantly harder for an insurer to argue you failed to take reasonable steps to protect yourself.

How Do Insurers Use the “Helmet Defense” Against You?

The “helmet defense” is one of the most powerful tools in an insurance company’s arsenal. Even when the other driver is 100% at fault, the insurer argues that your decision not to wear a helmet contributed to the severity of your injuries—particularly head and brain injuries. This defense appears in two forms:

• Contributory negligence: The insurer argues your failure to wear a helmet constitutes negligence, making you partially at fault for your own injuries.
• Failure to mitigate damages: The insurer claims you had a duty to minimize potential injuries by wearing a helmet and that your failure to do so should reduce your damages.

States That Allow the Helmet Defense

The majority of states permit the helmet defense. In comparative negligence states, the jury assigns a percentage of fault to each party. If the jury determines you were 20% at fault for not wearing a helmet, your $500,000 in damages becomes $400,000.

Under modified comparative negligence rules (the most common framework), you can recover only if your fault does not exceed 50% or 51%. In rare cases, an aggressive defense team may try to push your fault percentage above this threshold to bar recovery entirely.

States That Prohibit or Limit the Helmet Defense

A smaller number of states prohibit or restrict the use of helmet non-use as evidence. These states follow the same reasoning applied to seatbelt cases: a plaintiff’s failure to use a safety device should not reduce an at-fault driver’s responsibility for causing the crash. In these jurisdictions, evidence of helmet non-use is inadmissible, and the jury never hears about it.

Because these laws vary and change through legislation or court rulings, consulting with an attorney who understands your jurisdiction’s current rules is essential.

How Does Not Wearing a Helmet Affect Your Compensation?

If you were not wearing a helmet and suffered injuries in a crash caused by someone else, you can still pursue a claim—but the path to full compensation becomes more complicated.

Comparative Negligence Reductions

In comparative negligence states, the jury may reduce your damages by the percentage of fault they assign to your helmet non-use. Critically, this reduction typically applies only to head, brain, neck, and facial injuries—not to injuries a helmet would not have prevented. If you suffered broken legs, internal organ damage, spinal cord injuries, or road rash, the absence of a helmet is irrelevant. A skilled attorney will separate head-related injuries from the rest of your damages to limit any reduction.

The Causation Requirement

The defense does not get an automatic reduction simply because you were not wearing a helmet. They must prove a causal connection between your lack of helmet use and the specific injuries you sustained, typically through expert medical testimony. In a high-speed collision where the forces would have overwhelmed even the best helmet, expert testimony may establish that helmet use would not have changed the outcome—making your helmet status irrelevant.

What Do the Statistics Say About Helmet Use and Traumatic Brain Injury?

The data on helmets and TBI is unambiguous. According to NHTSA (Traffic Safety Facts: Motorcycles, DOT HS 813 427, 2024), helmets are approximately 37% effective in preventing motorcycle fatalities and 67% effective in preventing brain injuries. Unhelmeted motorcyclists are three times more likely to suffer a traumatic brain injury than helmeted riders.

• In 2023, 6,335 motorcyclists were killed in crashes—the highest number since NHTSA began collecting data in 1975 (NHTSA, Early Estimate of Motor Vehicle Traffic Fatalities, 2024).
• Motorcyclists accounted for 15% of all traffic fatalities despite representing a small share of vehicles on the road.
• Only 65% of fatally injured riders were wearing helmets at the time of their crashes.
• Hospital data shows 21% of unhelmeted crash victims suffered TBI, compared to 15% of helmeted riders.
• Helmets reduce the risk of head injury by 69% and neck injury by 50%.

Traumatic brain injuries from motorcycle accidents can result in permanent cognitive impairment, personality changes, and the inability to work. If you or a loved one has suffered a TBI, learn more on our brain injury page. In fatal cases, families may pursue a wrongful death claim.

What Are the Most Common Motorcycle Helmet Myths?

Misinformation about helmets can influence both rider decisions and jury perceptions. Understanding the facts matters for your safety and your legal claim.

Myth: Helmets Cause Neck Injuries

Multiple peer-reviewed studies, including those reviewed by the U.S. Government Accountability Office (GAO, Highway Safety: Motorcycle Helmet Laws Save Lives, GAO-13-42, 2012), found the opposite: unhelmeted riders suffer neck injuries at twice the rate of helmeted riders (10.8% neck fracture rate vs. 4.6%). Modern helmets distribute impact forces across a larger surface area, actually reducing cervical spine strain.

Myth: Helmets Impair Hearing

Helmets improve a rider’s ability to hear meaningful traffic sounds by cutting down on wind noise, which reaches damaging decibel levels at highway speeds. With wind noise reduced, riders can hear sirens, horns, and other critical cues more clearly.

Myth: Helmets Restrict Peripheral Vision

Federal law (49 CFR § 571.218) requires every DOT-approved helmet to provide a minimum of 210 degrees of peripheral vision, encompassing virtually the entire range of human binocular vision. A properly fitted, certified helmet does not meaningfully restrict your field of view.

Myth: Helmets Are Unnecessary at Low Speeds

Traumatic brain injuries can occur at speeds as low as 10-15 mph. A fall from a stationary motorcycle, with the rider’s head striking pavement from five to six feet, can produce enough force to cause a concussion, skull fracture, or fatal brain bleed.

Defense attorneys know jurors may hold these misconceptions. A well-prepared plaintiff’s attorney will counter them with expert testimony and peer-reviewed evidence.

What If You Were Wearing a Helmet and Still Got Injured?

Riders who do everything right still suffer catastrophic injuries when another driver’s negligence puts them in harm’s way. If you were wearing a helmet and still sustained injuries, several scenarios may apply:

• Impact forces exceeded the helmet’s design limits. In high-speed collisions or impacts involving heavy vehicles, the forces can exceed what any helmet can absorb.
• Rotational brain injuries. Rotational acceleration can cause diffuse axonal injury—a severe form of TBI—even when the helmet prevents a skull fracture. Newer helmets with MIPS technology address this, but many on the market do not.
• Defective helmet. If your helmet failed, you may have a product liability claim against the manufacturer in addition to your claim against the at-fault driver.
• Non-head injuries. Helmets do not protect the spine, torso, limbs, or internal organs. Broken bones, internal bleeding, road rash, and spinal cord injuries occur regardless of helmet use.

Wearing a helmet strengthens your claim because it demonstrates responsible behavior. At trial, a jury’s perception of your character can influence the size of your award.

Can Helmet Camera Footage Be Used as Evidence?

Helmet-mounted cameras have become a powerful source of evidence in motorcycle accident cases. Properly preserved footage can establish fault, document road and weather conditions, show you were riding safely, and help accident reconstruction experts calculate speeds and forces.

Admissibility Requirements

For helmet cam footage to be admissible in court, it must be authentic, unaltered, relevant, and properly preserved with a documented chain of custody. After a crash:

1. Secure the camera and memory card immediately.
2. Make multiple backup copies of the original, unedited file.
3. Note the timestamp, file name, and device model.
4. Provide the original to your attorney as soon as possible.
5. Do not post footage on social media—this can compromise your claim.

Be aware that helmet cam footage is a double-edged sword. If the video shows unsafe riding behavior, the defense will use it against you. An attorney can review your footage and advise on its impact before any decisions are made. If you were involved in a car accident, dashcam footage follows similar admissibility rules.

How Does an Attorney Fight the Helmet Defense?

When an insurance company raises the helmet defense, an experienced motorcycle accident attorney has multiple strategies to protect your compensation:

• Challenging causation: Retaining medical experts and biomechanical engineers to testify that a helmet would not have changed the outcome given the forces in your specific crash.
• Separating head injuries from other damages: Ensuring the helmet defense applies only to head-related damages—not to broken bones, spinal injuries, lost wages, or pain and suffering from non-head trauma.
• Arguing legal compliance: In states without helmet requirements, arguing that you cannot be penalized for exercising a legal choice. In states that bar the helmet defense, moving to exclude any mention of your helmet status.
• Refocusing on the defendant’s negligence: A distracted driver who ran a red light, a drunk driver who crossed the centerline, or a trucker who failed to check mirrors caused the crash—not your helmet choice. Without their negligence, the question of helmet use would be irrelevant.
• Presenting compelling evidence of damages: Medical records, expert testimony on prognosis and future needs, lost earning capacity, and family testimony about the injury’s impact shift focus to the real issue: the full scope of harm caused by the defendant.

Fighting the helmet defense requires specific experience with motorcycle litigation. Our motorcycle accident claims and legal rights guide provides additional detail on the claims process. You may also benefit from our motorcycle insurance claims guide and our analysis of lane splitting accidents.

Frequently Asked Questions About Motorcycle Helmet Laws and Injury Claims

Can I still file an injury claim if I was not wearing a helmet?

Yes. In every state, you can pursue a personal injury claim if another driver caused your accident, even without a helmet. However, in most states, the defense can argue your lack of helmet use contributed to your head injuries, potentially reducing your damages through comparative negligence. This reduction applies only to head-related injuries—not to broken bones, spinal damage, or internal injuries. An experienced motorcycle accident lawyer can minimize the impact of the helmet defense on your claim.

Does it matter whether my state requires helmets?

It matters, but perhaps not as much as you think. In universal helmet law states, riding without a helmet is a traffic violation that strengthens the insurer’s negligence argument. In states without a requirement, you were exercising a legal right. However, even in no-law states, many jurisdictions allow the defense to introduce helmet non-use as evidence relevant to damages.

What is the helmet defense?

The helmet defense is a legal strategy in which the at-fault party’s insurer argues your injuries would have been less severe with a helmet, reducing the compensation they owe you. They present medical expert testimony claiming a helmet would have prevented or lessened your head injuries. Your attorney counters with independent medical and biomechanical evidence specific to your crash.

If I was wearing a DOT-approved helmet and still suffered a brain injury, does that help my case?

Absolutely. Wearing a certified helmet demonstrates you took reasonable precautions. If you still suffered a brain injury despite proper protection, it underscores the extreme severity of the crash, makes it harder for the defense to assign you fault, and can increase the perceived value of your claim.

Can helmet camera footage help prove my case?

Helmet camera footage can be extremely valuable, establishing fault, documenting conditions, and capturing the moment of impact. To be admissible, the footage must be authentic, unaltered, and properly preserved. Secure your camera immediately, make backup copies, and provide the original to your attorney. Avoid posting footage on social media.

How much can the helmet defense reduce my compensation?

In comparative negligence states, the jury assigns a fault percentage for helmet non-use, and head-injury damages are reduced accordingly. Reductions of 10% to 30% are common, but this depends on the facts of the case. Damages for non-head injuries should not be reduced. A skilled attorney will ensure any reduction is limited to where it is medically justified.

Protect Your Rights After a Motorcycle Accident

Motorcycle helmet laws and the helmet defense add layers of complexity to an already challenging claims process. Whether you were wearing a certified helmet and still suffered devastating injuries, or you were riding without one in a state that permits it, you deserve full compensation for harm caused by another driver’s negligence.

At MaxxCompensation, attorney Charles C. Teale and our legal team have deep experience handling motorcycle accident injury claims. We understand the medical, legal, and strategic challenges these cases present, and we know how to fight back when insurance companies use the helmet defense to shortchange injured riders.

Call us today at 877-462-9952 for a free, no-obligation case evaluation. There are no upfront fees—we only get paid when you do.