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Driving Through Colorado? Know The Car Seat Laws (2024)

The state of Colorado legally requires any child under the age of 1 year old (up to 40 pounds) or any child under 20 lbs. (regardless of age) to be secured in a rear-facing car seat.

Children under age 4 and under 40 pounds must be secured in a rear-facing or forward-facing car seat with a separate harness device.

Car Seat Requirements Colorado

baby rides in car seat

Rear-Facing Car Seat Law Colorado

Children must ride in a rear-facing car seat in Colorado until they reach ONE of the following requirements:

  • Rear-Facing Car Seat Age: 1 year (up to 40 pounds)
  • Rear-Facing Car Seat Weight: 20 pounds (if over 1 year old)
  • Rear-Facing Car Seat Height: unspecified

Colorado’s car seat law is a little different than most states because it isn’t an either/or requirement.

Instead, children 1 year old and younger must ride rear-facing unless they weigh 40 pounds or more.

Children over 1 year old must remain rear-facing unless they weight 20 pounds or more (this is an unusual occurrence, but still on the books).

For children who are BOTH under 1 year old AND under 20 pounds, rear-facing car seats must legally be secured in the BACKSEAT of the vehicle without exception.

Front-Facing Car Seat Law Colorado

Children must ride in a front-facing car seat in Colorado until they reach ONE of the following requirements:

  • Front-Facing Car Seat Age: 4 years
  • Front-Facing Car Seat Weight: 40 pounds AND manufacturer weight limit
  • Front-Facing Car Seat Height: unspecified

Children under the age of 4 are expected to ride in front-facing car seats with separate harness systems until they reach the weight or height limit on their front-facing car seats before transitioning to a booster seat.

But they also MUST weigh 40 pounds or more before using a booster.

So, the weight limit for a front-facing car seat in Colorado is either 40 pounds OR the maximum weight on the child’s front-facing car seat, whichever is GREATER.

Where can I get my car seat checked or installed in Colorado?

The Colorado Department of Transportation helps maintain Car Seat Inspection Stations across the state.

To find an inspection station with a certified Child Passenger Safety Technician who can help you install a car seat or check your installation by appointment, see Inspection Stations.

The state recommends making an appointment with a Child Passenger Safety Technician 4-6 weeks before you need to use the car seat.

Appointments at Inspection Stations are typically filled several weeks in advance.

General Car Seat Laws FAQ

father buckles baby in car seat

Are car seats effective?

Yes. Very.

According to the CDC, “car seat use reduces the risk for injury in a crash by 71-82% for children, when compared with seat belt use alone.”

What’s the best car seat?

Different types of car seats (infant, convertible, etc.) have different uses.

But, no matter what type of car seat you’re using, the best car seat is the one that will do the most effective job of keeping your child safe in the event of an accident.

See Which Car Seat To Buy: Making Sure Your Little Ones Stay Safe On The Road for our recommendations.

How do you install a car seat?

Car seat installation varies depending on whether the seat is being installed rear- or forward-facing and the manufacturer of the seat.

For help installing a rear-facing car seat, see Passenger Safety For Babies at Safe Kids Worldwide.

And for help installing a forward-facing car seat, see Passenger Safety For Little Kids at Safe Kids Worldwide.

Does AAA do car seat inspections?

Yes, the American Automobile Association (AAA) has certified child passenger safety technicians on staff.

If you are a member of AAA, you can have your car seat installation inspected for free (when available in your area).

Go to AAA.com/carseats to make an appointment for inspection.

When were car seats invented?

Two precursors to car seats as we know them today were both invented in 1962. (Though, they weren’t available until the late-60s.)7a9cd5ef a9f7 4cf7 92cb 76d8e96f2c63

The first of these seats, and the one most similar to the car seats we use today, had a Y-shaped harness and was rear-facing.

The seat was invented by British inventor (and mother) Jean Ames.

The second of these seats was metal-framed seat designed to face forward, and was invented by American inventor Leonard Rivkin.

Before that, the only type of child seat for cars were booster-style car seats, which simply lifted children higher in the seat, but had no safety features and had been manufactured since the 1930s.

When did car seats become mandatory?

Car seats became mandatory between 1978 and 1986.

Though car seats were available in the late 1960s, and the data showing their effectiveness was available in the early 1970s, they remained optional safety devices, and most parents didn’t opt to use them.

So, it became a matter of enacting laws.

In the U.S., car seats became mandatory as most things do – on a state-by-state basis.

In 1978, Tennessee became the first state to enact a child restraint law of any kind (the law passed in 1977), a successful campaign that prompted other states to follow suit.

Over the next few years, all U.S. states passed and implemented child restraint laws, with all states enacting laws by 1986.

Who is responsible for child restraint laws in the U.S.?

While there were experts and activists all over the country working to pass child restraint laws, Dr. Robert Sanders and his wife Pat are largely credited with getting the first Tennessee law passed.

Dr. Sanders was a pediatrician and he and his wife lobbied for the legislation for years.

Dr. Sanders even got a moniker out of his activism.

He became affectionately known as “Dr. Seat Belt.”

Car Seats Save Young Lives

Car seats are designed to protect the smallest, most vulnerable of children, and, since car seat rules first went into effect nationwide in the mid-1980s, they have done a stellar job at saving kids’ lives.

That’s why car seats are required in every state in the U.S. up to a certain age (with some states also having booster and front seat laws), and why the American Academy of Pediatrics and CDC recommend using some form of child restraint system in vehicles until children are big enough to be protected by a car’s built-in safety features (4’9”).

So, definitely follow Colorado’s car seat laws to protect the smallest of children.

And continue to follow the booster and front seat laws (or expert guidelines) to ensure your child is well-protected on the road.

For more on Colorado’s booster seat laws, see Colorado Booster Seat Laws.

For more on Colorado’s front seat law, see Colorado Front Seat Law.

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