Children should graduate to a booster seat when they are at least 4 years old and weigh more than 40 pounds to ensure proper seat belt fitting and safety. Following age and weight guidelines is crucial for child safety in vehicles. Incorrect options do not adhere to recommended safety measures. ;
A child should graduate to using a booster seat when they are at least 4 years old and weigh over 40 pounds. These requirements help ensure the seat belt fits properly for maximum safety. The other options do not meet current safety standards.
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