Car seat & booster law
Pennsylvania
Verified · JUN 2026Quick answer · Pennsylvania
A car seat or booster is required until your child is 8 years old.
Children under 2 must ride in a rear-facing seat until they outgrow it. Children under 4 must be in a child restraint system, and children 4 to under 8 must be in an appropriately fitting booster. From age 8, a seat belt is legal.
Car seat law checker
The legally required restraint, by state.
General information, not legal advice.
SeatCheckerRequired vs recommended
What the law enforces, and what pediatricians advise. They are not the same.
The law requires
Minimum, or it's enforceable
- Rear-facing until
- Age 2
- Booster until
- Age 8
- Back seat
- Not required
Pediatricians recommend
AAP — safer, not the law
- Rear-facing until
- To seat limit (often age 2+)
- Booster until
- 4'9" — typically age 8–12
- Back seat
- Until age 13
AAP guidance is a safety best practice and is separate from Pennsylvania's legal minimum. Pediatricians recommend keeping a child in each stage longer than the law requires.
Every stage, by the law
Dual units shown throughout (in + cm, lb + kg). Rows marked Guidance are best practice, not a statutory requirement in Pennsylvania.
| Stage | Age | Height | Weight | Citation |
|---|---|---|---|---|
| Rear-facing | Birth – 2 yr | — | — | 75 Pa.C.S. § 4581 |
| Forward-facing | Toddler (per seat) | — | — | Guidance |
| Booster | until 8 yr | — | — | 75 Pa.C.S. § 4581 |
| Seat belt | 8 yr + | — | — | 75 Pa.C.S. § 4581 |
| Back seat | Recommended < 13 | — | — | Guidance |
- Age
- Birth – 2 yr
- Age
- Toddler (per seat)
- Age
- until 8 yr
- Age
- 8 yr +
- Age
- Recommended < 13