Car seat & booster law

Wyoming

Q: When can my child stop using a booster in Wyoming?

At age 9. Pediatricians recommend keeping a child in a booster until the seat belt actually fits, often around 4 feet 9 inches.

Q: Does Wyoming require rear-facing car seats?

Wyoming law does not set a rear-facing age. It requires a child who has not reached their 9th birthday to be secured in a child safety restraint system. Pediatricians recommend keeping a child rear-facing as long as the seat allows, up to the manufacturer's limit.

Q: Do children have to ride in the back seat in Wyoming?

Yes. A child under 9 must be secured in a child safety restraint system in a seat other than the front seat. From age 9, a seat belt is allowed.

Verified · JUN 2026

Quick answer · Wyoming

A car seat or booster is required until your child is 9 years old.

A child who has not reached their 9th birthday must be secured in a child safety restraint system in a seat other than the front seat. From age 9, a seat belt is allowed.

Rear-facing per seat Forward per seat Booster < 9 yr Belt 9+ yr

Wyo. Stat. § 31-5-1303 Read the statute

Car seat law checker

The legally required restraint, by state.

General information, not legal advice.

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Required vs recommended

What the law enforces, and what pediatricians advise. They are not the same.

The law requires

Minimum, or it's enforceable

Rear-facing until: Not specified by law
Booster until: Age 9
Back seat: Required under 9

Pediatricians recommend

AAP — safer, not the law

Rear-facing until: To seat limit (often age 2+)
Booster until: 4'9" — typically age 8–12
Back seat: Until age 13

AAP guidance is a safety best practice and is separate from Wyoming's legal minimum. Wyoming already requires a restraint and a non-front seat through age 8, which tracks the recommendations closely.

Every stage, by the law

Dual units shown throughout (in + cm, lb + kg). Rows marked Guidance are best practice, not a statutory requirement in Wyoming.

Wyoming car seat law requirements by restraint stage, age, height, weight, and statutory citation.
Stage	Age	Height	Weight	Citation
Rear-facing	Infant (per seat)	—	—	Guidance
Forward-facing	Toddler (per seat)	—	—	Guidance
Booster	until 9 yr	—	—	Wyo. Stat. § 31-5-1303
Seat belt	9 yr +	—	—	Wyo. Stat. § 31-5-1303
Back seat	under 9 yr	—	—	Wyo. Stat. § 31-5-1303

Rear-facing Guidance

Age: Infant (per seat)

Forward-facing Guidance

Age: Toddler (per seat)

Booster Wyo. Stat. § 31-5-1303

Age: until 9 yr

Seat belt Wyo. Stat. § 31-5-1303

Age: 9 yr +

Back seat Wyo. Stat. § 31-5-1303

Age: under 9 yr

Frequently asked questions

What is the car seat law in Wyoming in 2026?

A child who has not reached their 9th birthday must be secured in a child safety restraint system in a seat other than the front seat. From age 9, a seat belt is allowed.

When can my child stop using a booster in Wyoming?

At age 9. Pediatricians recommend keeping a child in a booster until the seat belt actually fits, often around 4 feet 9 inches.

Does Wyoming require rear-facing car seats?

Wyoming law does not set a rear-facing age. It requires a child who has not reached their 9th birthday to be secured in a child safety restraint system. Pediatricians recommend keeping a child rear-facing as long as the seat allows, up to the manufacturer's limit.

Do children have to ride in the back seat in Wyoming?

Yes. A child under 9 must be secured in a child safety restraint system in a seat other than the front seat. From age 9, a seat belt is allowed.

Sources

Verified · JUN 2026

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