A: Under Ontario’s Highway Traffic Act, the following applies:
Infants MUST use a rear-facing car seat until they weigh at least 9 kg (20 lbs).
Child MUST use a forward-facing child seat when they weigh between 9 kg and 18 kg (20-40 lbs).
Booster seats MUST be used if your child is:
Under the age of eight (8) AND
Weighs between 18 and 36 kg(40-80 lbs) AND
Is less than 145 c. (4 feet-9 inches) tall
Every child car seat MUST have the National Safety Mark label attached to the seat which indicates it is legal for use in Canada. Every child car seat and booster seat sold in Canada has an expiry or useful life date on it and should not be used past that date.
For further information you can go to the http://www.mto.gov.on.ca/english/and click on the “Safety” tab and select “http://www.mto.gov.on.ca/english/safety/choose-car-seat.shtml
The fine for not using a child car seat or booster seat as required by law is up to $1000 plus 2 demerit points on conviction.