Delaware car seat law (2026)

Children younger than 2 years and less than 30 pounds must ride in a rear-facing seat with a 5-point harness; children younger than 4 years and less than 40 pounds in either a forward- or rear-facing seat with a 5-point harness; children 4 through 15 in a booster based upon the manufacturer's guidelines, or a seat belt.

Plain-language summary — not legal advice. These provisions are displayed from the IIHS state law table (retrieved 2026-07-16). Laws change and have exceptions — verify against the table or your state's statute before relying on them. And the law is a minimum: NHTSA's guidance is to keep a child in each stage up to the seat's own height/weight limits, which usually lasts longer than the law requires.

Source: IIHS state law table · retrieved 2026-07-16 · DE

Provision	What the IIHS table lists for Delaware
Child restraint	Children younger than 2 years and less than 30 pounds must ride in a rear-facing seat with a 5-point harness; children younger than 4 years and less than 40 pounds in either a forward- or rear-facing seat with a 5-point harness; children 4 through 15 in a booster based upon the manufacturer's guidelines, or a seat belt.
Adult seat belt	Children who have reached the booster's upper height/weight limits may use a seat belt, through age 15.
Rear seat	Children 11 years and younger and 65 inches or less must be in the rear seat if the passenger airbag is active.
Fine (1st offense)	No fine on a first offense. In Delaware, there is a $25 fine for a second or subsequent offense, but on first offense, law enforcement shall provide a referral to the Office of Highway Safety car seat fitting station for guidance and education regarding proper use of a child restraint.

The law names ages — the seat's specs decide the switch

Every threshold above meets a spec question: is your child still within the seat's own height/weight limits for that mode? That's published manufacturer data, and it's what this site organizes:

Keeping a toddler rear-facing longer → extended rear-facing seats (higher rear-facing limits).
Moving from harness to booster → booster seats, incl. narrow boosters for 3-across.
One seat across the whole journey → all-in-one (4-in-1) seats.
Not sure a seat works in your car → how to check fit.

Seats at the stages Delaware names

The provisions above are written in ages, heights and weights. These are seats in our database at those stages, with the limits printed in each maker's manual. This is not a statement that any seat satisfies Delaware law. Check the seat's own limits and your vehicle's fit.

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which seats we compare.

Booster seats

Graco TurboBooster 2.0
- Booster (with back) 40–100 lb · 43–57 in · 4+ yrs
- Booster (backless) 40–100 lb · 43–57 in · 4+ yrs
Lightweight for travel
See price on Amazon
Chicco KidFit ClearTex Plus
- Booster (with back) 40–100 lb · 44–57 in · 4+ yrs
- Booster (backless) 40–110 lb · 44–57 in · 4+ yrs
Lightweight for travel
See price on Amazon
Clek Oobr
- Booster (with back) 40–100 lb · 43.3–57 in · 4+ yrs
- Booster (backless) 40–100 lb · 43.3–57 in
Narrow for 3-across
See price on Amazon
mifold Grab-and-Go
- Booster (backless) 40–100 lb · 40–59 in
Narrow for 3-across · lightweight for travel
See price on Amazon

All-in-one seats

Graco 4Ever DLX 4-in-1
- Rear-facing 4–40 lb
- Forward-facing harness 22–65 lb
- Booster (with back) 40–100 lb · 43–57 in · 4+ yrs
- Booster (backless) 40–120 lb · 43–57 in · 4+ yrs
Extended rear-facing · FAA-approved for aircraft
See price on Amazon
Britax One4Life ClickTight
- Rear-facing 5–50 lb · 18–49 in
- Forward-facing harness 30–65 lb · 35–49 in
- Booster (with back) 40–120 lb · 44–63 in
Extended rear-facing · FAA-approved for aircraft
See price on Amazon

Tap a seat name for its side-by-side page and the manual. Full lists: every booster seat · every all-in-one · narrow boosters for 3-across · how to check fit

FAQ

What is the car seat law in Delaware?
Children younger than 2 years and less than 30 pounds must ride in a rear-facing seat with a 5-point harness; children younger than 4 years and less than 40 pounds in either a forward- or rear-facing seat with a 5-point harness; children 4 through 15 in a booster based upon the manufacturer's guidelines, or a seat belt. (As published in the IIHS state law table, retrieved 2026-07-16 — a summary, not legal advice.)

When can a child use just a seat belt in Delaware?
Children who have reached the booster's upper height/weight limits may use a seat belt, through age 15. Best practice is to keep using a booster until the adult belt fits properly — lap flat on the thighs, shoulder belt across the chest — regardless of the legal minimum.

Does Delaware require children to ride in the back seat?
Children 11 years and younger and 65 inches or less must be in the rear seat if the passenger airbag is active. (As published in the IIHS state law table.) NHTSA's recommendation goes further: all children under 13 in the back seat, and never a rear-facing seat in front of an active passenger airbag.

What is the fine for a car seat violation in Delaware?
No fine on a first offense. In Delaware, there is a $25 fine for a second or subsequent offense, but on first offense, law enforcement shall provide a referral to the Office of Highway Safety car seat fitting station for guidance and education regarding proper use of a child restraint. (As published in the IIHS state law table, retrieved 2026-09-24 — a summary, not legal advice.)

Is the Delaware law the same as best practice?
No — the law is the legal minimum. NHTSA recommends keeping children in each stage (rear-facing, forward-facing harness, booster) up to the seat's own height and weight limits, which usually lasts longer than the law requires.

Citing these specs? Go ahead — published manufacturer data, last verified 2026-06-11. Copy a ready-made reference:

All states: car seat laws by state · nearby in the list: District of Columbia · Florida · Georgia · Hawaii · Idaho