
Specific provisions vary widely from State to State. All laws include an age limit, but some States also emphasize weight limits, while others also stipulate height requirements.
NHTSA has a site filled with newly updated information on booster seat requirements. This particular chart is great for providing a clear visual overview. With so many different requirements, it’s no wonder parents are confused!
To look up detailed information on legal child restraint laws in your State, follow this link.
Booster seat laws were recently enacted in New Brunswick. In British Columbia and Newfoundland and Labrador the rulles are set to change on July 1st. Sick Kids Canada produced a comprehensive chart summarizing booster seat and child seat requirements by province and territory. The excerpt below (click on it to see the full document) lists the requirements for the provinces that mandate booster seat usage. Of course, we believe all children should use appropriate child restraints in the car until they are big enough to pass the 5 step test, even if the law says they are old enough for adult seatbelts. Otherwise, it just isn’t safe.

Canada, your seat must have a CA seal to be approved. Seats sold on this site are not stickered for Canada.