04/20/2026
Montana Child Passenger Restraint Laws (Effective Oct. 1, 2025)
Montana's laws require children to be in specific restraints based on age:
Under 2 years: Rear-facing child safety seat.
Age 2-4: Rear-facing or forward-facing child safety seat with an internal harness.
Age 4-8: Forward-facing child safety seat or booster seat.
Age 9+ (or >4'9"): Standard seat belt
If your child wants to ditch the booster seat, check his or her seat belt fit. If you can check off all six items on this list, they are ready to ride without a booster seat. Want to learn more about correct seat belt fit? Check out Booster Seats and Seat Belts Basics Mini-Course!
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