What parents should know about the new car seat regulations effective June 30

Starting June 30, 2025, all car seats sold in the U.S. will be required to meet new federal safety standards. The change is designed to better protect children in side-impact (T-bone) collisions, a type of crash known for causing severe injuries.

Here’s what this update means for you—whether you already have a car seat or are planning to buy one soon.

First, take a deep breath: You don’t need to replace your current seat

If you already own a car seat, there’s no need to panic or replace it—as long as it:

• Has not expired
  
• Hasn’t been recalled
  
• Is properly installed and appropriate for your child’s weight and height

As the National Highway Traffic Safety Administration (NHTSA) explains, “Current child seats are highly effective in reducing the likelihood of death or serious injury in vehicle crashes.”

So if your current seat checks those boxes, you’re in the clear.

Related: A parent’s guide to car seat safety: Tips, rules & product picks

What’s changing with the new safety rule?

The updated regulation—Federal Motor Vehicle Safety Standard No. 213a (FMVSS 213a)—adds a new crash test specifically for side-impact collisions.

Why this matters: These crashes often happen at intersections and are especially dangerous for children seated on the side of the car.

The new test simulates a 30 mph side crash and ensures that car seats:

• Keep children properly restrained
  
• Prevent head contact with the vehicle interior
  
• Reduce the force of impact on the chest

The new rule applies to seats made for kids under 40 pounds—typically infant and toddler seats.

What to do if you’re buying a car seat after June 30

Many manufacturers are already producing car seats that meet the new FMVSS 213a standard, but it may not be clearly labeled on the box.

Here’s how to check:

• Ask the retailer if the model complies with the new standard
•  Contact the brand’s customer service to confirm
• Use the NHTSA’s car seat guide to match your child’s age and size with the correct seat
• Use the NHTSA’s installation locator tool to get your seat checked by a certified technician

What does “expired” actually mean?

Yes, car seats expire, and it’s more important than it sounds.

Over time, plastic parts can degrade, safety technology evolves, and newer standards (like this one) come into effect. An expired seat may no longer offer optimal protection.

To check if your seat has expired:

• Look for the expiration date printed on the bottom or side of the seat
  
• If there isn’t one, check the date of manufacture and visit the manufacturer’s website for their specific lifespan (typically 6–10 years)

Related: 10 car seat guidelines every parent needs to know

Want to dive deeper?

If you’re the research-loving type, you can view the actual crash test data and technical breakdowns behind the regulation update on the NHTSA website:

 NHTSA side-impact test database

Quick recap: What parents should do now

• Already own a seat? Check for expiration, recalls, and proper installation
• Buying a new one? Ask if it meets FMVSS 213a and confirm with the brand
• Use NHTSA tools for choosing and installing the right seat
• No need to panic—but being informed puts you in the driver’s seat

This update is a positive move toward safer rides for our little ones—and by staying aware, you’re doing exactly what matters most: protecting your child with love, care, and confidence.