In Quebec, a child must use a booster seat until at least:

Question: In Quebec, a child must use a booster seat until at least:

Answer options:

• Age 4 ✅ Age 9 or 145 cm
• Age 12
• Until parents decide

Correct answer: Age 9 or 145 cm

Explanation: Age 9 or 145 cm is correct because Quebec’s Highway Safety Code mandates that children use an approved booster seat until they reach either nine years of age or a height of 145 centimeters to ensure standard seatbelts fit them safely. Age 4 is incorrect because a child of this age is far too small for standard belts and still legally requires a booster or car seat, while Age 12 and Until parents decide are incorrect because the threshold is a legally defined safety standard rather than a parental preference or a later teenage milestone. Knowing these exact legal measurements is highly relevant for passing SAAQ exam questions concerning passenger safety regulations.