Car Seat Stage Finder: Rear-Facing, Forward-Facing or Booster?
The National Highway Traffic Safety Administration (NHTSA) sorts car seats into four stages by age and size. Enter your child's age, and if you know them, their weight and height and the limits printed on your car seat's label. The finder shows the stage NHTSA recommends and when to move to the next one.
NHTSA's Four Car Seat Stages
| Age | NHTSA recommendation | Move on when |
|---|---|---|
| Birth to 12 months | Rear-facing car seat, always | Keep rear-facing past age 1 |
| 1 to 3 years | Rear-facing as long as possible | Your child reaches the seat's rear-facing height or weight limit |
| 4 to 7 years | Forward-facing seat with harness and tether | Your child reaches the seat's harness height or weight limit |
| 8 to 12 years | Booster seat in the back seat | The seat belt fits without a booster |
The age ranges are NHTSA's. The real switch points are the limits on your seat, so the finder asks for them. You'll find them on the label on the side or back of the seat and in the manual.
How to Tell When the Seat Belt Fits
NHTSA describes a proper belt fit this way:
- The lap belt lies snugly across the upper thighs, not the stomach.
- The shoulder belt lies snugly across the shoulder and chest, and doesn't cross the neck or face.
If either isn't true, your child still needs a booster. NHTSA also says children should ride in the back seat at least through age 12.
Install it correctly. NHTSA says to install a seat with either the lower anchors or the seat belt, never both, and to always use the top tether with a forward-facing seat. Car seat inspection stations, listed on NHTSA's website, can check your work.
Car Seat Stage Questions
My Toddler's Legs Touch the Back Seat. Should They Face Forward?
NHTSA's advice is based on the seat's height and weight limits, not leg room. Keep rear-facing until your child reaches one of those limits.
Can My 2-Year-Old Face Forward If They're Big?
Only once they reach the rear-facing height or weight limit on their seat. NHTSA says to keep children aged 1 to 3 rear-facing as long as possible.
When Can My Child Stop Using a Booster?
When the seat belt fits on its own, which NHTSA puts in the 8 to 12 age range. Use the belt check above.
Shopping for a seat? Our car seats guide compares rear-facing limits on five seats.