What Is the 'Seat Belt Defense'?

Every state but New Hampshire requires adult drivers and passengers to wear seatbelts. Most states have stricter seatbelt laws for children. If someone gets into a car accident and isn’t wearing their seatbelt, can they still demand damages?

Several states allow an at-fault driver to reduce their liability because the accident victim wasn’t wearing their seatbelt at the time of the accident. This doesn’t mean the person who caused the car crash is off the hook entirely, but it can mean that the plaintiff in a car accident lawsuit may receive less money than they would have had they worn their seatbelt.

This article explains the seatbelt defense and shows when a defendant in a personal injury case can raise this defense. It also examines the state laws regarding this defense and the rationale behind why it’s a law.

If you were recently in an auto accident and worry that the injured party in your car accident case will raise this defense, contact a local car accident attorney.

Seatbelt Use in the United States

According to the Centers for Disease Control (CDC), wearing a seatbelt can cut down a person’s risk of serious injury or death by more than half. In 2017 alone, seatbelt use prevented more than 15,000 traffic fatalities. With this knowledge, it should come as no surprise that all but one state has laws requiring drivers and passengers to buckle up.

There are two types of seatbelt laws in the United States: primary and secondary enforcement laws. Primary enforcement laws allow the police to pull someone over for not wearing a seat belt. Secondary enforcement laws permit the police to issue a seatbelt ticket only after pulling them over for another reason.

As of October 2025, 34 states have primary seatbelt laws and 15 have secondary seatbelt laws. Research has shown that seatbelt use is higher in states with primary enforcement laws, leading to fewer fatal accidents in these states.

Seat Belt Defense Theory

The seat belt defense is simple to understand. This defense states that if the accident victim had been wearing their seatbelt at the time of the accident, they would not have suffered severe injuries. In states that recognize the seatbelt defense, at-fault drivers can avoid some or all liability if they can prove the plaintiff wasn’t wearing a seatbelt at the time of impact.

In general, this defense reduces the amount of damages the accident victim could have received had they been wearing their seatbelt. However, it’s not guaranteed to be a successful defense for the at-fault driver.

Rationale Behind the Seatbelt Defense

There are two main rationales behind the seatbelt defense, both related to tort law. The first concerns the comparative negligence rule, which states that drivers who are partly at fault for their motor vehicle accident can still collect damages. The court will reduce their damages by their percentage of fault.

There are two versions of comparative negligence: pure and modified. The pure comparative negligence rule allows you to recover damages regardless of your percentage of fault. Even if you were 90% responsible, you could recover 10% of your damages.

In the states that apply the modified comparative negligence rule, accident victims can only collect damages if they were less than 50% at fault. A handful of states allow you to recover damages if you’re less than 51% responsible.

While most states follow the comparative negligence rule, a few states follow the contributory negligence rule. This rule prohibits plaintiffs from recovering compensation if they were partially responsible for the crash, even if it’s only 1%. Alabama, Maryland, North Carolina, Virginia, and the District of Columbia still follow contributory negligence.

The second rationale behind the seatbelt defense is that, under tort law, plaintiffs must mitigate their damages. Mitigation requires accident victims to do everything they can to minimize their damages.

Under this principle of mitigation, if a car accident victim doesn’t use their safety belt, they have failed to mitigate damages. The plaintiff’s failure to wear their seatbelt justifies the reduction in damages.

Seat Belt Defense Jurisdictions

State seatbelt laws vary. If you plan to raise this defense in your car accident lawsuit, ensure you live in a state that recognizes it. You can confirm whether the defense is available in your state by meeting with a personal injury attorney.

States that recognize the seatbelt defense as of October 2025 include:

• Alaska
• Arizona
• California
• Colorado
• Florida
• Georgia
• Iowa
• Michigan
• Missouri
• New Jersey
• New York
• Ohio
• Oregon
• West Virginia
• Wisconsin

Laws are subject to change at any time, so please confirm the laws of your state.

Some States Do Not Recognize the Seatbelt Defense

While the seat belt defense may work in some states, more than half of the states and the District of Columbia do not recognize it. The states that do not permit the seatbelt defense as of October 2025 include:

• Alabama
• Arkansas
• Connecticut
• Delaware
• District of Columbia
• Hawaii
• Idaho
• Illinois
• Indiana
• Kansas
• Kentucky
• Louisiana
• Maine
• Maryland
• Massachusetts
• Minnesota
• Mississippi
• Montana
• Nebraska
• Nevada
• New Hampshire
• New Mexico
• North Carolina
• North Dakota
• Oklahoma
• Pennsylvania
• Rhode Island
• South Carolina
• South Dakota
• Tennessee
• Texas
• Utah
• Vermont
• Virginia
• Washington
• Wyoming

Disclaimer: State laws change frequently due to new legislation, higher court rulings, and other means. While FindLaw strives to provide readers with the most current information, consult with a car accident lawyer to confirm your state laws and discuss your case.

Get Legal Advice From an Experienced Car Accident Lawyer

In the days and weeks after a car accident, the last thing you’ll want to do is fight with the insurance company. Talking with a car accident attorney can help make the process much easier.

A personal injury lawyer will review your claim and let you know if the seat belt defense applies to your case. They’ll also let you know if you have a claim for damages.

It’s best to meet with an attorney sooner rather than later because you must file any personal injury claim before the statute of limitations expires. If you wait too long, you may lose the chance to recover the compensation you deserve.