Under federal law, you have to be at least 13 years old to legally skip wearing a life jacket on a moving recreational boat. Once you turn 13, federal rules only require that a Coast Guard-approved life jacket be on board and accessible for you, not that you actually put it on. Children under 13 must wear one whenever the boat is underway, unless they’re below deck or inside an enclosed cabin. Many states set their own age cutoffs, and certain activities like riding a jet ski require everyone to wear one no matter how old they are.1eCFR. 33 CFR 175.15 – Personal Flotation Devices Required
The Federal Age Cutoff Is 13
Federal regulations draw a line between carrying life jackets and wearing them. Every recreational vessel has to carry one wearable, Coast Guard-approved life jacket for each person aboard, properly sized, in good condition, and readily accessible. For anyone 13 or older, that’s the whole obligation. You need the life jacket on the boat. You don’t have to put it on.1eCFR. 33 CFR 175.15 – Personal Flotation Devices Required
For children under 13, the rule flips. No one may operate a recreational vessel that’s underway with a child under 13 aboard unless that child is wearing a Coast Guard-approved life jacket or is below deck or in an enclosed cabin.1eCFR. 33 CFR 175.15 – Personal Flotation Devices Required
The Coast Guard recommends that everyone wear a life jacket whenever the boat is moving, pointing to the fact that most drowning victims in boating accidents had a life jacket somewhere on the vessel but weren’t wearing it. That’s a recommendation, not a legal requirement for adults.2United States Coast Guard. Life Jacket Wear / Wearing Your Life Jacket
Your State May Set a Different Age
The federal age of 13 is a floor, not the final word. Under 33 CFR 175.25, if a state has passed its own law setting a different age threshold for mandatory life jacket wear, the state law applies on waters within that state’s jurisdiction instead of the federal rule.3eCFR. 33 CFR 175.25 – Enforcement of State Requirements for Children to Wear Personal Flotation Devices
State cutoffs vary widely. Some states only require children under 6 to wear a life jacket. Others push the requirement up to age 16. Ohio, for example, sets its threshold at under 10.4United States Coast Guard. Child Wear of Personal Flotation Devices States may also set narrower rules by vessel type, requiring everyone in a canoe or kayak to wear a life jacket even when the general age cutoff wouldn’t otherwise apply.
Before you launch, check the boating regulations for the state where you’ll actually be on the water. The state parks and wildlife agency or fish and game department publishes the current rules. On a river or lake that borders two states, the stricter rule applies within each state’s waters.
When Age Doesn’t Matter
Certain activities trigger mandatory life jacket wear for every person on board, regardless of age. Personal watercraft is the big one. Nearly every state requires all riders on a jet ski, WaveRunner, or similar craft to wear a Coast Guard-approved life jacket at all times, and the Coast Guard makes the same recommendation.2United States Coast Guard. Life Jacket Wear / Wearing Your Life Jacket
Towed water sports work the same way. If you’re being pulled behind a boat on water skis, a wakeboard, a tube, or any similar device, you’ll need to wear a life jacket, and the jacket must be approved for the specific activity. An inflatable belt-pack style typically won’t qualify for towed sports.
Some states also require mandatory wear during cold-weather months or when water temperatures drop below a set threshold, because cold water cuts down the time a person has to help themselves after falling in. If you boat year-round, check whether your state has a seasonal wear rule.
Who Gets in Trouble When a Child Isn’t Wearing One
The boat operator carries primary legal responsibility. If a 10-year-old on your boat isn’t wearing a life jacket on the open deck, you’re the one in violation, even if the child’s parent is sitting right there. Parents and guardians have their own overlapping responsibility for their own children, so both the operator and the parent can face consequences when a child isn’t properly equipped.
Treat it as a pre-departure checklist: count heads, count life jackets, confirm sizes, and make sure every child who needs to be wearing one has it buckled before you leave the dock.
Penalties
Federal penalties for violating life jacket requirements can reach $1,000 per violation. That covers not carrying enough life jackets, not having the right sizes on board, or operating a boat with an unprotected child under 13 on the open deck.5Office of the Law Revision Counsel. 46 USC 4311 – Penalties and Injunctions
State fines vary and may be lower or higher than the federal figure. A Coast Guard boarding that finds a minor issue, such as life jackets stored somewhere inaccessible, may end in a written warning rather than an immediate fine. If the same problem turns up on a second boarding within a year, it automatically escalates to a violation with financial consequences.6United States Coast Guard. Frequently Asked Questions