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Idaho Car Seat Laws (2022)

The state of Idaho legally requires children age 6 and younger to be secured in a child-restraint system.

The law does not specify type of child seat by age, but the state does have recommended guidelines for child safety.

Car Seat Requirements Idaho

baby rides in car seat

Rear-Facing Car Seat Law Idaho

There is no legal specification for how long a child must ride in a rear-facing car seat in Idaho.

Idaho law only dictates all children 6 years old and younger be secured in a child seat of some kind.

However, the state does provide safety guidelines for when you should use a rear-facing car seat.

Rear-Facing Car Seat Guidelines Idaho

Idaho recommends keeping children in a rear-facing car seat until they reach ONE of the following:

  • Rear-Facing Car Seat Age: 2 years
  • Rear-Facing Car Seat Weight: determined by manufacturer
  • Rear-Facing Car Seat Height: determined by manufacturer

There are no car seat rules in Idaho regarding height and weight limit for rear-facing car seats.

Instead, the state advises keeping children rear-facing until age 2 or until they reach the height or weight limit on their rear-facing seats.

Forward-Facing Car Seat Law Idaho

There is no legal specification for how long a child must ride in a front-facing car seat in Idaho.

Idaho law only dictates all children 6 years old and younger be secured in a child seat of some kind.

However, the state does provide safety guidelines for when you should use a front-facing car seat.

Front-Facing Car Seat Guidelines Idaho

Idaho recommends keeping children in a front-facing car seat until they reach ONE of the following:

  • Forward-Facing Car Seat Age: 4 years
  • Forward-Facing Car Seat Weight: determined by manufacturer
  • Forward-Facing Car Seat Height: determined by manufacturer

The recommended forward-facing age in Idaho is the average minimum age for the use of a booster seat.

However, the state advises keeping a child in a forward-facing car seat (with internal harness) until the child reaches the height or weight limit on their forward-facing seat.

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

If you need help installing a car seat in Idaho (or would like your installation checked), the state advises searching for a car seat inspection station with certified technicians on the National Highway Traffic Safety Administration website.

If you cannot find a technician in your area, you can contact the state Child Passenger Safety Centralized Leadership coordinator at the email address/phone number listed under “Child Safety Seat” on the Idaho Transportation Department’s Highway Safety page.

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.)

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 Idaho’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 Idaho’s booster seat laws, see Idaho Booster Seat Laws.

For more on Idaho’s front seat guidelines, see Idaho Front Seat Law.

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