Until what age or weight should a child sit in a rear-facing infant or convertible seat?

• Until they are at least 1 year old and weigh over 10 kg
• Until they are at least 2 years old and weigh over 4 kg
• Until the child reaches the manufacturer’s recommended weight or height limit for a forward-facing seat
  Explanation:

  "From birth, all children must use a rear-facing infant or convertible seat until they reach the manufacturer’s recommended weight or height limit to transition to a forward-facing safety seat. Rear-facing seats provide optimal protection for a child’s developing neck and spine in the event of a crash."
• Whenever the caregiver decides to switch