
Yes, infant car seats absolutely have an expiration date, typically between 6 and 10 years from the date of manufacture. Using a car seat past this date is strongly discouraged by safety experts and manufacturers. The primary reason is material degradation. The plastics and EPS foam (Expanded Polystyrene, the energy-absorbing foam that crushes on impact) can weaken over time due to temperature extremes, sunlight exposure, and general wear and tear. This compromises the seat's ability to properly protect your child in a crash.
The expiration date isn't an arbitrary number. It's based on rigorous testing by manufacturers to ensure the seat's structural integrity lasts for a specific period. Older seats also lack the latest safety innovations and may not meet updated federal safety standards (FMVSS 213).
You can find the expiration date stamped directly on the plastic shell of the seat. Some manufacturers also include it on a sticker along with the model number and date of manufacture. If you can't find it, check the manufacturer's website or contact their customer service.
Here is a general guideline for expiration periods from major manufacturers:
| Manufacturer | Typical Expiration Period | Common Location of Date |
|---|---|---|
| Graco | 6 to 10 years | On a sticker on the seat shell |
| Britax | 6 to 10 years | Molded into the plastic shell |
| Chicco | 6 to 8 years | On a label under the seat cover |
| Evenflo | 6 to 8 years | Stamped on the plastic shell |
| Maxi-Cosi | 6 to 9 years | On a label sewn into the cover |
| Clek | 7 to 9 years | Molded into the plastic shell |
| UPPAbaby | 7 to 8 years | On a label under the seat cover |
If your seat is expired, or has been in a moderate or severe crash, it should be permanently retired. To prevent it from being reused, disassemble it, cut the harness straps, and write "EXPIRED" or "UNSAFE" on the shell with a permanent marker before disposing of it according to your local recycling guidelines.

My sister just had a baby and asked me about my old car seat. I told her straight up: "Nope, it's expired." I checked the date molded right into the plastic. Those things have a shelf life, just like food. The plastic gets brittle and the foam inside that's supposed to cushion the kid breaks down after years of sitting in a hot car. It’s not worth the risk for a few hundred bucks. Always buy new or get one from someone you absolutely trust who knows its full history.

As a safety technician, I see expiration dates as a critical non-negotiable. The materials, particularly the plastics and energy-absorbing foams, are engineered for a specific service life. Beyond that date, we cannot guarantee their performance in a collision. Factors like UV exposure and thermal cycling accelerate fatigue. The expiration date is the manufacturer's guarantee of integrity. Adhering to it is a fundamental part of responsible child passenger safety.

When I was getting the nursery ready, I registered for a new car seat. My mom thought we could use the one from my childhood she'd saved. It was a sweet gesture, but car seat safety has changed so much! I showed her the expiration date stamped on the bottom. They didn't even have those back then. It made it easier to explain why we needed a new one with all the latest safety features and materials that are guaranteed to be strong.

I'm a practical guy. I looked into this because my wife and I are expecting. The expiration date is real, and it makes sense. Think about a plastic lawn chair left in the sun for years—it gets brittle and cracks. A car seat goes through the same thing. The expiration is a conservative estimate to ensure it works when you need it most. I found the date molded into the shell of the one we bought. We'll mark the calendar to replace it in 8 years. It's a small price for peace of mind.


