Florida Car Seat Laws by Age — and the Safety Gap the Law Leaves Open

Florida only requires a car seat or booster through age 5. After that, a plain adult seat belt is legal — one of the weakest child-passenger laws in the country. Here is what the statute actually says, what safety experts recommend instead, and what the fatal-crash data shows about the gap between the two.

7 min read · Last reviewed August 10, 2026 · Crash data & safety

Florida parents often assume that if they follow the state's car seat law, their child is protected. The law and the safety standard are two different things — and in Florida the distance between them is unusually wide. The state stops requiring any child restraint after age 5, while pediatric and federal guidance says most children need a booster until roughly age 8 to 12. Our data report on the human cost of that gap, "Unbuckled," found that the children dying in Florida crashes are overwhelmingly the ones who were not properly restrained.

What Florida's car seat law actually requires

Florida's child-restraint rule is Fla. Stat. 316.613. It sets three age brackets:

• Ages 0 through 3: the child must be secured in a federally approved child restraint device — either a separate carrier or a car seat built into the vehicle.
• Ages 4 and 5: the child must be in a car seat or a booster seat. A regular seat belt alone is not enough.
• Ages 6 through 17: only an adult seat belt is legally required. No booster is required at any point past a child's sixth birthday.

That last bracket is what makes Florida an outlier. Most states keep children in boosters until about age 8 or until they reach a specific height. Florida lets a six-year-old ride on an adult belt alone, which is legal but, by every major safety standard, too early.

Where the safety standard is set

The American Academy of Pediatrics and NHTSA don't set the line by age alone — they set it by fit. A seat belt fits correctly when the lap belt lies low across the upper thighs (not the belly) and the shoulder belt crosses the middle of the chest and shoulder (not the neck or face). Most children don't reach that fit until they are about 4 feet 9 inches tall, which typically happens between ages 8 and 12. Until then, a booster raises the child so the adult belt sits where it should. Separately, children under 13 are safest in the back seat, away from the force of a deploying front airbag.

Legal minimum vs. safety standard, by age

Source: Fla. Stat. 316.613; AAP and NHTSA child-passenger safety guidance.

What the crash data shows about the gap

The consequences of that gap show up in the fatal-crash record. In our review of Florida FARS data from 2019 to 2023, 239 children ages 0 to 12 were killed as passengers. Of those, 43% were completely unrestrained — no car seat, no booster, no belt. Only about 27% were in a car seat or booster, and another 26% were in an adult belt only. Here is how those 239 deaths break down by restraint:

The pattern gets worse in exactly the age range the law stops protecting. Among the children killed who were 8 to 12 years old — 56% were unrestrained. And across all ages, 23% of the children killed were ejected from the vehicle, an outcome that is almost always tied to being unbuckled. Meeting the letter of Florida's law is not the same as keeping a child in the restraint that survives a crash.

How restraint status affects a Florida claim

Parents are sometimes told that if their child wasn't in the "right" seat, they have no case. That is not how Florida works. A child's restraint status does not erase a claim against a driver who caused the crash. What it can do is give an insurer an argument to reduce the value of the claim, similar to how a missing seat belt can be raised for an adult. Importantly, Florida's no-fault PIP coverage still applies to a child's crash injuries regardless of fault, and a child injured in a crash may have their own claim separate from the parents. If an insurer is pointing to the car seat to minimize a serious injury, that is a question worth running past a Florida attorney.

Practical takeaways for Florida parents

1. Follow the fit, not just the age. Keep your child in a booster until an adult belt genuinely fits — around 4'9", usually age 8 to 12 — even though Florida law lets you stop at 6.
2. Keep kids under 13 in the back seat. It is the single simplest way to reduce airbag and crash risk.
3. Check that the seat is installed and used correctly. A correctly used booster is what actually closes the gap the data exposes.

This guide is educational and not legal advice. Car seat laws and safety recommendations can change; confirm current requirements with FLHSMV and NHTSA, and consult a licensed Florida attorney about any specific claim.

This is general information about Florida law, not legal advice. Every crash is different — for advice about your situation, talk to a licensed Florida attorney. Reviewed August 10, 2026.