By Michael Shemtoub, trial attorney, Beverly Law. Updated November 2026.
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The three helmet laws side by side
| Question | California | Texas | Washington |
|---|---|---|---|
| Who must wear one | The driver and any passenger of a motorcycle, motor-driven cycle or motorized bicycle (Veh. Code 27803(a)) | Operators and passengers on a public street or highway (Transp. Code 661.003(a)-(b)) | Anyone who operates or rides a motorcycle, motor-driven cycle or moped on a state highway, county road or city street (RCW 46.37.530(1)(c)) |
| Main exception | Certain fully enclosed three-wheeled vehicles (27803(f)) | Age 21 or older plus an approved training course or qualifying health insurance (661.003(c)) | Antique motor-driven cycles and vehicles with a steering wheel, seat belts and a partly or fully enclosed seating area |
| What counts | A helmet meeting state standards, on the head, strapped, and fitting securely (27803(e)) | Headgear meeting Department of Public Safety standards | Hard shell, padding, chin or neck strap, and a manufacturer’s certification to U.S. DOT standards (RCW 46.37.530(3)) |
| Strap rule | Must be fastened | Not addressed in 661.003 | Must be fastened while moving |
| Fine | Not set in 27803 | $10 to $50 (661.003(h)) | Not set in 46.37.530 |
Two Texas details matter on the road. A peace officer may not arrest or cite a rider 21 or older who shows proof of the course or the insurance, and an officer may not stop a rider just to check for that proof (661.003(c), (c-1)).
What the national numbers show
Of the 6,228 motorcyclists killed in 2024, NHTSA reports that 34 percent were not wearing helmets, based on known helmet use. In states without universal helmet laws, 48 percent of riders killed were unhelmeted, compared with 11 percent in states with universal laws. Only 17 states, the District of Columbia and Puerto Rico required helmets for all riders in 2024 (Motorcycles: 2024 Data).
By state:
| 2024 | Motorcyclists killed | Not helmeted (known use) |
|---|---|---|
| California | 522 | 8% |
| Texas | 583 | 38% |
| Washington | 113 | 5% |
NHTSA also estimates what helmets do. In a lives-saved report published in March 2019, it found that helmets saved 1,872 motorcyclists in 2017, and that 749 more could have been saved if every rider had worn one (DOT HS 812 683). If you hit your head in a crash, our page on head injury danger signs lists the symptoms that call for emergency care right away.
Does riding without a helmet hurt your injury claim?
It can, and the argument is often called the “helmet defense.” It is a fight about causation. The defense has to connect the missing helmet to a specific injury. A rider with a broken leg, a crushed hand or a spinal injury from the impact has injuries that a helmet would not have changed. A head injury is where the argument lives, and even then the defense usually needs medical or engineering testimony that a helmet would have prevented or lessened that particular injury.
California
California juries apply pure comparative fault (Li v. Yellow Cab). Under the standard jury instruction, the defendant must prove both that the plaintiff was negligent and that the plaintiff’s negligence was a substantial factor in causing the harm. If it does, the jury sets a percentage and the judge reduces the damages (CACI 405). Because the helmet law covers every rider, the defense can argue that riding without one was negligent. The causation step is still its burden.
Texas
Texas juries assign a percentage of responsibility to each party (CPRC 33.003). The statute defines that percentage by conduct “causing or contributing to cause in any way” the personal injury for which damages are sought (CPRC 33.011(4)). That wording reaches the injury itself, so the defense can try to tie a head injury to the lack of a helmet. Chapter 661 contains no rule about using helmet evidence in a civil case. A rider 21 or older who qualified for the exemption rode legally, but that does not by itself stop a negligence argument. The 51 percent bar raises the stakes: a claimant found more than 50 percent responsible recovers nothing (CPRC 33.001).
Washington
Washington’s definition of fault includes “unreasonable failure to avoid an injury or to mitigate damages,” and it says the legal requirements of causal relation apply to contributory fault (RCW 4.22.015). Any fault charged to you lowers the award in proportion but does not bar it (RCW 4.22.005). Washington’s universal law makes it easy for the defense to call nonuse unreasonable, so the case turns on whether a helmet would have made a difference to the injury you have.
For how a percentage translates into dollars, see comparative fault in the three states, and for the other factors that set value, see what a motorcycle claim is worth.
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Novelty helmets and why your helmet is evidence
A helmet that looks legal may not be. NHTSA says a compliant helmet has the DOT symbol on the outside back and a label listing the manufacturer, the model, DOT, FMVSS No. 218 and the word CERTIFIED. It warns that fake DOT labels are sold. Signs of a “novelty” helmet include a shell thinner than about one inch, often with no stiff foam liner, and a weight of about a pound or less, compared with about three pounds for a typical compliant helmet (NHTSA).
Keep the helmet you wore, exactly as it is after the crash. Scrapes, cracks and crushed foam show where your head struck and how hard. The defense may argue that a novelty helmet was no helmet at all, and the label and the shell answer that question one way or the other.
What this means for your case
A missing or substandard helmet does not end a motorcycle claim in any of these states. It gives the defense an argument about specific injuries, and the medical evidence decides how far that argument goes. Expect the insurer to ask early whether you wore a helmet and what kind. Answer truthfully, and talk to a lawyer before giving a recorded statement. If you were hurt in Los Angeles, our Los Angeles motorcycle accident page explains local next steps. Texas cases are handled by the firm’s Texas-licensed attorneys, Joyce Ondich and John Efstathiou.
Common questions
Do passengers have to wear a helmet?
Yes in California and Washington. In Texas, a passenger must wear one unless the passenger is 21 or older and meets the course or insurance exemption, and a rider may not carry a passenger who is breaking the rule.
Can I sue if I was not wearing a helmet?
Yes. The driver who caused the crash is still responsible for it. The helmet issue affects how much of the head-injury damages, if any, may be reduced.
Does a helmet ticket matter in my injury case?
The ticket alone does not decide fault in the civil case. The question there is whether the lack of a helmet caused or worsened a particular injury.
What if my helmet came off in the crash?
Tell your lawyer, and keep the helmet and its strap. A strap that was fastened and failed is a different story from a strap left open, and the hardware can show which one happened.
How do Texas riders prove the insurance exemption?
The statute directs the Texas Department of Insurance to prescribe a standard proof of health insurance for riders 21 or older (661.003(c-2)). Carry it with you, along with any course completion record. If an insurer is already asking about your helmet, more answers are in our injury law FAQs. Beverly Law offers a free case review in English or Spanish at (310) 552-6959. You owe no fees or costs unless we win.
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Related pages
Sources
- Cal. Vehicle Code 27803 (leginfo.legislature.ca.gov)
- Tex. Transp. Code 661.003 (statutes.capitol.texas.gov)
- RCW 46.37.530 (app.leg.wa.gov)
- NHTSA, Motorcycles: 2024 Data (DOT HS 813 824, July 2026) (crashstats.nhtsa.dot.gov)
- NHTSA, Lives Saved in 2017 by Restraint Use and Minimum-Drinking-Age Laws (DOT HS 812 683, March 2019) (crashstats.nhtsa.dot.gov)
- NHTSA, Choose the Right Motorcycle Helmet (nhtsa.gov)
- CACI No. 405, Comparative Fault of Plaintiff (Justia reproduction of the Judicial Council instruction) (justia.com)
- Li v. Yellow Cab Co. (1975) 13 Cal.3d 804 (Stanford SCOCAL) (scocal.stanford.edu)
- Tex. Civ. Prac. & Rem. Code 33.003 (statutes.capitol.texas.gov)
- Tex. Civ. Prac. & Rem. Code 33.011 (statutes.capitol.texas.gov)
- Tex. Civ. Prac. & Rem. Code 33.001 (statutes.capitol.texas.gov)
- RCW 4.22.015 (app.leg.wa.gov)
- RCW 4.22.005 (app.leg.wa.gov)
Important: This page is general information, not legal or medical advice, and reading it does not create an attorney-client relationship. Every case is different; talk to a lawyer about yours. Texas cases are handled by the firm’s Texas-licensed attorneys, Joyce Ondich and John Efstathiou. Last reviewed: November 7, 2026.