Delaware Car Seat Laws: Age, Weight, and Booster Rules

Delaware car seat laws require every child under 16 to be secured in a car seat, booster seat, or seatbelt suited to their age, weight, and height, and the driver is the one held responsible. Since the law was updated on June 30, 2023, the point at which your child moves from one type of restraint to the next is set by the seat manufacturer’s height and weight limits, not by fixed age cutoffs in the statute. The rules live in 21 Del. C. § 4803.¹

Rear-Facing Car Seats

A child who is under two years old and weighs less than 30 pounds must ride in a rear-facing car seat with a five-point harness. Both conditions have to be met before you can turn the seat around. A two-year-old who still weighs under 30 pounds stays rear-facing. A child who reaches 30 pounds before turning two also stays rear-facing.¹

The National Highway Traffic Safety Administration and the American Academy of Pediatrics both recommend keeping a child rear-facing beyond the legal minimum, up to whatever the seat manufacturer allows.² Many convertible seats now rate rear-facing use to 40 or 50 pounds.

Forward-Facing Harnessed Seats

Once a child is at least two and weighs at least 30 pounds, they can move to a forward-facing seat with a five-point harness. Any child under four years old and under 40 pounds must still be in a harnessed seat, whether rear- or forward-facing, and only as long as they remain within the manufacturer’s rated limits.¹

This is where the 2023 change matters. The older version of the law used fixed age-and-weight thresholds to trigger each transition. The current law ties the transition to the sticker on your specific seat, which generally keeps children in more protective restraints longer.³ Check the label on the side of the seat, or the manual, for the exact numbers.

Booster Seats

When a child outgrows their harnessed seat, Delaware requires a belt-positioning booster. The child stays in the booster until they reach the upper height or weight limit set by that booster’s manufacturer.¹ There is no fixed age or weight in the statute that ends the booster requirement. In practice, no booster on the market has a height maximum below 4 feet 4 inches, so most children will remain in one until at least that height.³

The booster’s job is to raise the child so the vehicle’s belt sits correctly: the lap portion low across the upper thighs, and the shoulder portion across the middle of the chest and shoulder without crossing the neck or face. If the belt does not fit that way without the booster, the child is not ready to leave it.

Seatbelts for Older Children

A child who has outgrown the booster per the manufacturer’s guidelines must wear a properly secured seatbelt in every seating position, and that requirement runs until the child turns 16.¹ This surprises many parents. A 14-year-old riding unbelted is the same legal violation for the driver as a toddler in the wrong seat.

Front Seat Restrictions

A child cannot ride in the front passenger seat when they are both under 12 and 5 feet 5 inches or shorter, if the vehicle has an active passenger-side airbag. Both conditions have to be true. A 10-year-old who is 5 feet 6 inches is not covered. A 13-year-old who is 5 feet tall is not covered either.¹

Passenger airbags deploy at 150 to 200 miles per hour, and a shorter child’s head sits at the level where the airbag opens. For a rear-facing infant seat placed up front, an airbag can strike the shell with enough force to cause fatal head injuries.

There are two exceptions:

The vehicle has no rear passenger seat. The child may ride in front while properly restrained.
Every rear seat is already occupied by another child who is under 12 and 5 feet 5 inches or shorter. One additional qualifying child may then ride in front.¹

The front-seat restriction is a secondary offense, so police cannot pull you over for it alone. They can cite you for it after stopping you for something else. The car seat and booster requirements themselves are not limited in that way.

Taxis, Limos, and Rideshare

The statute exempts charter buses, limousines, and taxicabs, using the definitions in Title 2 of the Delaware Code.¹ Rideshare services like Uber and Lyft are not on that list. The standard car seat rules apply in an Uber or Lyft, so if you use rideshare regularly with a young child, you need to bring your own seat.

Penalties

A first violation of the child restraint law does not carry a fine. Instead, the driver is referred to one of the Office of Highway Safety’s car seat fitting stations for guidance on proper installation and use.³

A second or subsequent violation is a $25 fine. If more than one child in the same vehicle is improperly restrained at the same time, the law counts that as a single violation rather than stacking fines per child.¹ Court costs and administrative surcharges usually push the total above the base fine.

A restraint violation can also aggravate another traffic conviction from the same stop. In that case, the court can add a penalty of up to 40 percent of the fine for the other offense, capped at $20, paid into Delaware’s Victim’s Rights Fund.¹

Free Car Seat Inspections

The Office of Highway Safety runs fitting stations where certified technicians check your installation at no cost. You do not need a citation to use them.

Wilmington DMV, 2230 Hessler Blvd, New Castle, DE 19720, (302) 434-3234
Dover DMV, 303 Transportation Circle, Dover, DE 19901, (302) 744-2749
Sussex County, by appointment only, (302) 242-7107⁴

Studies consistently find that the majority of car seats are installed incorrectly. A loose harness or a base that shifts more than an inch cuts into the seat’s protection in a crash, and both are the kinds of things a technician catches in a few minutes.

1
Delaware Code Online. Delaware Code 21 – Occupant Protection System Safety Act
2
National Highway Traffic Safety Administration. Car Seat Recommendations for Children
3
State of Delaware News. Child Passenger Safety Week: Update to Delaware Car Seat Law
4
Delaware Office of Highway Safety. Car Seat Fitting Stations