The California seat belt law, Vehicle Code Section 27315, requires every driver and passenger aged 16 or older to be properly buckled whenever the vehicle is on a highway or public road. The base fine is $20 for a first offense, but penalty assessments push the real cost to roughly $162. Going unbelted can also reduce what you recover in a personal injury lawsuit and may nudge your insurance rates upward.1California Legislative Information. California Vehicle Code 27315
Who Has to Wear a Seat Belt
Section 27315 applies to anyone riding in a passenger car, motortruck, or truck tractor. Motorcycles are excluded. Farm labor vehicles are covered regardless of their certification date.
Every occupant 16 or older must be properly restrained. That means the lap portion of the belt crosses your hips or upper thighs, and the shoulder portion (if the vehicle has one) crosses your chest. Front seat or back seat, the rule is the same.1California Legislative Information. California Vehicle Code 27315
Who Gets the Ticket
Both the driver and an unbelted passenger can be cited, and their liability comes from different parts of the statute. The driver violates subdivision (d) by operating the vehicle while an occupant 16 or older is unbelted. The passenger independently violates subdivision (e) by riding without a belt. Officers often ticket both.
For passengers younger than 16, only the driver is responsible. If a 14-year-old in your back seat is not buckled, the citation goes to you.1California Legislative Information. California Vehicle Code 27315
Children Under 8 Follow a Different Law
Section 27315 covers occupants 8 and up. Children under 8 fall under Vehicle Code Section 27360, which requires a child passenger restraint system rather than a regular seat belt. Children under 2 must ride in a rear-facing car seat unless they weigh 40 or more pounds or are 40 or more inches tall. Children between 2 and 7 must be secured in an appropriate car seat or booster in the rear seat. Once a child turns 8, they move to the standard seat belt requirement. If you are transporting someone else’s child without the parent in the car, the driver bears full responsibility.2California Legislative Information. California Vehicle Code 27360
Who Is Exempt
The statute recognizes a few narrow exemptions:
- Medical or physical disability, but only with a written certification from a licensed physician, surgeon, or chiropractor that identifies the condition and explains why a restraint cannot be used. General discomfort is not enough, and you need to be able to show the certification to an officer.
- A person actively delivering newspapers along a route with frequent stops, during the delivery portion only. You must be belted before starting and after finishing.
- A passenger occupying a sleeper berth in a commercial truck.
A handful of vehicle types follow modified rules. A taxicab driver is exempt while driving on a city street and actively transporting a fare-paying passenger, but front-seat taxi passengers 8 or older must still be belted. In a limousine for hire, the driver and front-seat passengers 8 or older must be belted; rear-seat passengers are not covered by this provision. Public employees operating authorized emergency vehicles must belt the driver and front-seat passengers 8 or older, with a broader exemption for the operator if the employing agency does not require restraint use. A rideshare driver in a personal vehicle gets no special treatment.1California Legislative Information. California Vehicle Code 27315
Penalties, Fines, and How Enforcement Works
A seat belt violation is an infraction. The base fine is $20 for a first offense and $50 for each subsequent offense. California adds state and county penalty assessments, court fees, and surcharges on top of the base, and a first adult seat belt ticket typically runs about $162 after everything is included.
Two things soften it. The violation does not add a point to your driving record. And for a first offense, the court can let you attend a traffic safety program instead of paying the fine and assessments; completing it wipes the financial penalty, though the infraction stays on your court record.
California uses primary enforcement, so an officer can pull you over solely because someone in the car appears unbelted. No other traffic violation has to come first.1California Legislative Information. California Vehicle Code 27315
How It Affects an Injury Claim
If you are hurt in a crash and were not belted, expect the other driver’s insurer to raise it. Under Section 27315, a seat belt violation does not automatically make you negligent and cannot be used to establish negligence as a matter of law or for comparative fault purposes. The opposing side can still try to prove, as a factual matter, that failing to buckle up was negligent and worsened your injuries.
If the defense connects the missing belt to the severity of your injuries, a jury can reduce your damages by whatever percentage it attributes to your own conduct. The statute does not cap that reduction, and this civil exposure often costs far more than the ticket itself.1California Legislative Information. California Vehicle Code 27315
What It Does to Your Insurance
Because the ticket carries no DMV points, it does not trigger the automatic rate hikes that come with moving violations. Insurers can still see the infraction on your court record when they run a background check at renewal. Industry data suggests a single seat belt citation raises premiums by roughly 3%, or about $60 a year on a typical full-coverage policy. The violation can stay on your record for up to three years, so the cumulative premium cost can exceed the fine.