Tools · Car Seat
Arizona Car Seat & Booster Checker (2026)
Enter your child's age, height, and weight to see the minimum seat stage Arizona law requires and the first-offense fine ($50). This is the legal minimum, not best safety practice.
Arizona car seat checker
4′9″ = 57 in. Enter only the boxes you have. Arizona uses required ages 5–7 while 4′9″ or shorter; exit at age 8 or taller than 4′9″.
Arizona does not legislate rear-facing vs forward-facing by age; it requires a restraint appropriate per the manufacturer's instructions. Best practice from AAP (the pediatricians' association) and NHTSA (the federal highway-safety agency), not Arizona law: rear-facing to age 2+, then a harness, then a booster.
- Child
- Not entered
- Minimum legal stage
- Enter age / height / weight
- Booster-exit rule
- required ages 5–7 while 4′9″ or shorter; exit at age 8 or taller than 4′9″
- First-offense fine
- $50
Plain-language summary, not legal advice.
This shows the minimum legal requirement in Arizona, not best safety practice, which is usually stricter, and not legal or safety advice. Always follow your car seat's manufacturer instructions. For the full four-stage rules, front-seat rule, and citation, see the Arizona car seat law reference, cited to A.R.S. §28-907 (last reviewed 2026-07-09).
How Arizona car seat law works
Arizona is the most lenient of these 15 states. Section 28-907 requires a child restraint only for children under 5, and a booster only for children 5–7 who are 4′9″ or shorter, so a tall or older child leaves the requirement quickly. Arizona does not legislate rear-facing by age, which means "rear-facing until 2" is AAP/NHTSA best practice here, not law. It also has no front-seat law: the statute applies to each passenger regardless of seating position, so the familiar back-seat-until-13 advice is a recommendation, not something an officer can cite. The booster exit is age 8 or 4′9″, whichever comes first, and the fine is a waivable $50.
This checker shows the Arizona minimum legal requirement (not best safety practice, which is usually stricter) and is not legal or safety advice. For the full four-stage rules, front-seat rule, and citation, see the Arizona car seat law reference.
Car seat checkers for other states
Same tool, each with its own booster-exit rule.