After your child outgrows their forward-facing seat (around 40 pounds and age 4), give them a boost with a booster seat. Under Minnesota law, kids must ride in a booster until they are age 8 or 4 feet 9 inches tall — whichever comes first. It is recommended to keep a child in a booster based on their height, rather than age.
Boosters raise a child up so a seat belt fits properly. Belts should cross over shoulder and the chest — never across the neck. Belts should never be tucked behind back or under arm (unsafe and illegal).
Learn more at buckleupkids.mn.gov: