The expiration date is stamped or printed on a label attached to the car seat frame

Every car seat manufactured in the United States has an expiration date printed on a permanent label, usually on the back or bottom of the seat. The label is typically white or silver and contains the manufacturer's name, model number, and a date that reads "Do Not Use After" followed by a month and year. This date is not a suggestion — car seats degrade over time, and manufacturers set the expiration to mark when the plastic and foam no longer meet safety standards.

The location of this label varies by brand and model. On some seats, it is on the back panel where you would not see it unless you pull the seat away from the wall. On others, it is on the bottom, visible only when you tip the seat forward or remove it from the vehicle. A few manufacturers place it on the side. If you cannot find it when ready, check all surfaces before assuming the date is missing.

The expiration date is typically 6 to 10 years from the date of manufacture, not from the date you bought it. A seat purchased new last year may have been manufactured 2 years before that, so the actual time you have left could be shorter than you think.

Key Takeaways

  • The expiration date is printed on a permanent label on the car seat frame, most often on the back or bottom.
  • The label reads "Do Not Use After" followed by a month and year, and this date is set by the manufacturer based on material degradation, not arbitrary policy.
  • The expiration date counts from the manufacture date, not the purchase date, so a new-looking seat may already be partway through its lifespan.
  • Once a car seat reaches its expiration date, it should not be used, even if it appears undamaged or has never been in a crash.

Why car seats have expiration dates

Car seat plastic and foam degrade over time due to exposure to heat, sunlight, and repeated use. The National Highway Traffic Safety Administration (NHTSA) does not mandate expiration dates, but manufacturers set them based on testing data showing when materials no longer absorb impact the way they did when new. A 10-year-old seat may look fine but could fail to protect a child in a crash because the foam has lost its shock-absorbing properties.

Temperature extremes accelerate this breakdown. A car seat left in a hot vehicle during summer or stored in an unheated garage experiences faster material degradation than one kept in a climate-controlled home. Even seats that have never been in a crash can reach the end of their safe lifespan.

How to read the label when you find it

Once you locate the label, look for the line that says "Do Not Use After" or sometimes "Expiration Date." The format is usually month/year or month-year. For example, "Do Not Use After 06/2028" means June 2028. Some labels also list the manufacture date separately, which helps you understand how old the seat actually is.

Write down the expiration date or take a photo of the label. This information is useful if you ever need to recall the seat, donate it, or verify its age to a childcare provider or school. Keep the photo in your phone or a document you can access quickly.

What to do if you cannot find the label

If the label is missing, faded, or unreadable, contact the manufacturer directly. You will need the model number, which is usually printed elsewhere on the seat or in the instruction manual. The manufacturer can tell you the manufacture date and expiration date based on the model and serial number.

Do not guess or assume the seat is still safe. If you cannot determine the expiration date with certainty, the safest choice is to stop using the seat. Many communities have car seat recycling programs or donation centers that will take expired seats off your hands.

Checking the expiration date before buying a used car seat

When buying a used car seat from a secondhand store, online marketplace, or friend, always ask to see the label before you complete the purchase. A used seat may have only a year or two of safe life remaining, or it may already be expired. Sellers sometimes do not know the expiration date, so inspect the seat yourself if possible.

Avoid buying a car seat at a garage sale or thrift store if you cannot verify the expiration date on the spot. The savings are not worth the risk if the seat is close to or past its safe lifespan. Many retailers and nonprofits offer new or certified used seats at lower prices than you might pay for an unknown-age secondhand seat.

Expired car seats and insurance or liability

Using an expired car seat does not automatically void your car insurance, but it does create a liability problem if your child is injured in a crash. Insurance companies and courts may view the use of an expired seat as negligence, especially if the expiration date was visible and you ignored it. In some states, using an expired car seat could be cited as a violation of child safety laws.

More importantly, an expired seat may not protect your child the way a current seat would. The legal and financial consequences are secondary to the safety issue.

Frequently Asked Questions

Can I use a car seat one month after the expiration date?

No. The expiration date is a firm cutoff set by the manufacturer based on material testing. Using a seat even one month past the date means the foam and plastic have degraded beyond the safety standard the seat was designed to meet. Once the date passes, the seat should not be used.

Does the expiration date change if I have never used the seat?

No. The expiration date is based on the manufacture date and material degradation over time, not on whether the seat has been used. A brand-new, never-installed car seat that was manufactured 8 years ago is still only 2 years away from expiration.

What if the label is worn off but I know when I bought the seat?

The purchase date does not tell you the expiration date because the seat was manufactured before you bought it. Contact the manufacturer with the model number and serial number to find out when it was made and when it expires. If you cannot reach the manufacturer or identify the model, the safest choice is to replace the seat.

Can I donate or sell an expired car seat?

You should not sell an expired car seat to another person, as it would put their child at risk. Many communities have car seat recycling programs that accept expired seats and dispose of them responsibly. Some manufacturers also run take-back programs. Contact your local waste management or a children's safety organization to find a program near you.

Do all car seat brands use the same expiration date format?

Most brands use "Do Not Use After" followed by a month and year, but the exact wording and label placement vary. Some labels are easier to read than others. If you are unsure whether you are reading the date correctly, contact the manufacturer or check the instruction manual, which usually includes a photo of the label and where to find it.