Weight Requirements for Child Safety Seats

Keeping your children safe when driving starts with seat belts and the proper car seat for a child's weight. Legal guidelines vary by state for the safety seat weight requirements. In all cases, check the child safety seat manufacturer's documentation, your car manufacturer's guidelines and your state laws to confirm you are using the right safety seat for your child.

Rear-facing Infant Seats

• No matter their age, babies should ride rear-facing until they are at least 20 lbs. Most rear-facing infant seats are safe for children heavier than 20 lbs. as well, and you should take into consideration your child's age and height when choosing the safety seat.

Front-facing Car Seats

• In general, children must be over 20 lbs. before they sit in a front-facing safety seat. They can generally sit safely in a standard car seat until they are 40 lbs. and frequently at heavier weights as well. Consider the child's age and height as well when choosing the correct safety seat.

Booster Seats

• After 40 lbs., most children can move to booster seats, with or without built-in backs. In general, children as heavy as 80 lbs. can safely sit in booster seats. A child's temperament and height are also important factors in selecting the proper seat. A child must be tall enough to use an adult seat belt if you choose a booster seat without a back. Booster seats with backs can be useful for children with a tendency to try to move around while the car is in motion.