Maryland law for booster seats

Maryland Booster Seat Law 2026: Age, Height & Weight Rules Explained

If you are raising a family in Maryland, keeping up with the state’s child passenger rules matters every time you buckle a car seat. The Maryland law for booster seats sets clear standards for age, height, and weight, and understanding these rules helps parents in Baltimore, Annapolis, Frederick, and every county in between avoid fines while keeping kids safe.

Understanding the Maryland Booster Seat Law

Maryland’s Child Passenger Safety Law is found in Transportation Article Section 22-412.2. It requires that children under the age of 16 be properly restrained whenever they ride in a motor vehicle, whether that means a child safety seat, a booster seat, or a standard seat belt.

Who the Law Covers

The rule applies to every driver transporting a child in Maryland, including rideshare drivers using Uber or Lyft. Taxis are currently exempt, though safety officials still encourage compliance for every ride.

Age Requirements Under Maryland Law

Under current Maryland statute, children under age 8 must ride in an appropriate child restraint system, and a booster seat qualifies as long as it meets federal safety standards. Once a child turns 8, they may transition to a regular seat belt, provided it fits properly.

Height and Weight Rules for Booster Seats

Age is not the only factor. Maryland law also includes a height exemption that can apply before a child’s eighth birthday.

The 4-Foot-9 Exemption

If a child reaches 4 feet 9 inches tall before turning 8, they may legally use a seat belt instead of a booster seat. There is no separate weight cutoff written into the current statute, so height and age are the two factors that determine when a booster seat is no longer legally required. Many pediatric safety groups still recommend keeping a child in a booster until the seat belt fits correctly across the lap and shoulder, even if the child has technically met the legal exemption.

Booster Seat Rules for Children Ages 8 to 16

Once a child ages out of the booster requirement, Maryland law still requires that anyone under 16 be secured with a seat belt whenever the vehicle is in motion. This applies in the front seat and back seat alike, although safety experts recommend the back seat for children under 13.

Where Should the Booster Seat Be Placed

Booster seats should always be installed in the back seat when possible. This position reduces exposure to front airbags, which deploy with enough force to injure a small child.

Penalties for Non-Compliance

A first violation of the Maryland child passenger safety law typically results in a fine, and repeat violations can bring stricter penalties or mandatory safety education. Beyond the legal risk, an improperly restrained child faces a much higher chance of serious injury in a crash.

Tips for Maryland Parents and Caregivers

Check your specific booster seat’s manufacturer guidelines, since some seats have their own height and weight limits that go beyond what state law requires. Free car seat inspection events run throughout Maryland through the Kids In Safety Seats program, and these sessions are a practical way to confirm your booster is installed correctly.

Final Thoughts

Maryland’s booster seat rules exist to protect children during the years when they have outgrown a harnessed seat but are not yet ready for an adult seat belt. Following the age and height guidelines closely, and leaning toward extra caution, gives Maryland families the best protection on the road.

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