Tools · Car Seat
Oregon Car Seat & Booster Checker (2026)
Enter your child's age, height, and weight to see the minimum seat stage Oregon law requires and the first-offense fine ($115 (presumptive)). This is the legal minimum — not best safety practice.
Oregon car seat checker
4′9″ = 57 in. Enter only the boxes you have. Oregon uses a booster is required for children over 40 lb who are 4′9″ or shorter; reaching age 8 or a height above 4′9″ exits (weight over 40 lb starts the booster stage, not age).
- Child
- Not entered
- Minimum legal stage
- Enter age / height / weight
- Booster-exit rule
- a booster is required for children over 40 lb who are 4′9″ or shorter; reaching age 8 or a height above 4′9″ exits (weight over 40 lb starts the booster stage, not age)
- First-offense fine
- $115 (presumptive)
Plain-language summary, not legal advice.
This shows the minimum legal requirement in Oregon, 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 Oregon car seat law reference, cited to ORS §811.210 (last reviewed 2026-07-11).
How Oregon car seat law works
Oregon writes rear-facing into law: a child under 2 must ride rear-facing in a child safety system, so this is a statute here, not just a manufacturer recommendation. The booster stage keys off weight and height rather than a fixed start age. A child over 40 lb who is 4′9″ or shorter needs a booster, and the requirement ends at age 8 or once the child grows past 4′9″. You may see local guidance say a child must be "both 4′9″ AND age 8" to leave the booster, but the statute itself lets a child 8 or older ride with the vehicle belt, so age 8 or 4′9″ is the exit. Oregon has no rear-seat law, so "back seat until 13" is a NHTSA recommendation, not law. One honesty note: ORS 811.210 sets no dollar fine. The roughly $115 figure comes from Oregon’s general Class D traffic-fine schedule.
This checker shows the Oregon 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 Oregon car seat law reference.
Car seat checkers for other states
Same tool, each with its own booster-exit rule.