By law a child less than 4 years of age may legally be positioned in the child restraint system in the front seat if what condition is met?

• A. If the front passenger air bag is turned off and the rear seating is occupied by children less than 4 years of age.
• B. If the front passenger air bag is turned on and the rear seating is empty.
• C. If the car is parked.
• D. If there are four seats.

Answer: (A)

The key idea is that for a child under four, the default rule is to ride in a rear seat in a proper child restraint. The only legal exception to this is when the rear seating is already occupied by other children under four and the front passenger air bag is turned off. Turning off the air bag reduces the risk of injury to a small child in a crash, which is why this specific setup allows the front seat to be used in this case. The other scenarios—air bag on, car parked, or having a certain number of seats—do not meet the exception, so they’re not allowed.