Arizona’s Child Car Seat and Seat Belt Laws

Arizona’s child restraint laws differ depending on the age and size of the child. The law also provides exceptions for certain types of vehicles and situations.

Here are the basics of the law and penalties for a violation.

Arizona's Car Seat and Seat Belt Laws for Children

Arizona's child restraint law isn't very specific. Basically, the law gives general requirements for three age brackets:

• children younger than five years old
• children who are at least five and younger than eight years old, and
• children who are at least eight years old.

However, as explained below, a child's height can also be a factor that affects the car seat and seat belt requirements. (ARS § 28-907 (2024).)

Arizona's Car Seat Rules for Children Under 5 Years Old

Arizona law requires all children under the age of five to be properly restrained in a child restraint system. A child restraint system can be rear-facing, forward-facing, or a booster seat so long as they all comply with federal safety regulations.

Arizona's Car Seat and Seat Belt Rules for Children Between 5 and 8 Years Old

Children between the ages of five and eight must be in a restraint system if they are under 4’ 9”. Once a child is over the age of five and at least 4’9”, he or she must use a seat belt.

Arizona's Seat Belt Requirement for Children Who Are At Least 8 Years Old

For children who are at least eight years old, it's lawful to use an ordinary seat belt. However, depending on the size of the child, a booster seat might be a safer option.

Types of Child Car Seats

Arizona law requires parents to use "child restraint systems" that comply with federal law. Generally, an appropriate child restraint system is going to be a:

• rear-facing car seat
• forward-facing car seat, or
• booster seat.

To determine which seat is appropriate, it's best to check the manufacturer's instructions. Also, in many areas, law enforcement or the fire department can inspect your car seat to ensure it's the right kind of seat and properly installed.

Rear-Facing Car Seats

Generally, the first restraint system parents should use is a rear-facing car seat. A rear-facing car seat is typically appropriate until a child reaches about two years old.

Forward-Facing Car Seats

Once a child outgrows his or her rear-facing seat, a forward-facing car seat is the next step up. Generally, children use forward-facing seats until about age five.

Booster Seats

Booster seats are generally appropriate for children who have outgrown their forward-facing seat but are not yet big enough for a normal seat belt to fit properly. Many children are big enough to use a normal seat belt at around age eight.

Exceptions to Arizona's Car Seat Laws

Arizona’s child restraint law does not apply to a person who:

• is driving a vehicle that was originally manufactured without seat belts
• is driving a recreational vehicle
• has a CDL license and is driving a commercial vehicle
• must transport a child in an emergency to get medical care
• is driving an authorized emergency vehicle and is transporting a child for medical care.

Arizona's law also contains an exception that applies in certain circumstances where a vehicle doesn't have sufficient passenger space to accommodate car seats for multiple children.

Penalties for Car Seat and Seat Belt Tickets in Arizona

The fine for violating the child restraint law is $50. However, if the driver purchases a car seat that complies with federal safety guidelines, the judge will generally drop the fine.

Seat belt violations carry a maximum fine of $10 per person.

Child Car Seat Recalls

From time to time, recalls are issued for child car seats. To find out about recalls, you can register with the NHTSA to receive recall information about the seat you have or search for recalls that have already been issued.