Due to changes in vehicles, regulations, new technology, and general wear and tear, we recommend that a car seat be replaced on or before the expiration date. Do NOT use after the expiration date. Century labels expiration timing information into the bottom/back of each car seat so you know how long the seat is safe to use. Expiration dates can range anywhere from seven to ten years after the date of manufacture depending on the car seat so it is important to check the Date of Manufacture on the white serial number label on your seat.
Used or expired car seats can be dangerous, especially if you do not know the car seat's history. Once the seat has expired, check to see if there is a recycling center in your area. If throwing the seat away, you should first take measures to make the seat unusable by cutting the harness straps, removing the seat cover, and by writing "DO NOT USE/EXPIRED" on the seat.
For more information please visit the JPMA website on car seat expiration: https://www.jpma.org/news/455401/Useful-Life-of-Car-Seats.html