If you need the actual Idaho car seat law — not a guess — this page has it: the restraint stages, the fine for a violation, whether kids can ride up front, and a link to the official statute, all verified against Idaho Transportation Department publications.
Law data last verified against official state sources: October 4, 2026.
Quick answer
Idaho requires all children age 6 and younger to be properly secured in an appropriate child safety restraint (fine up to $69); the statute sets no rear/forward/booster stages — follow manufacturer instructions.
Idaho car seat requirements by age and size
| Stage | What Idaho law requires |
|---|---|
| Rear-facing | Not mandated by statute; Idaho Transportation Dept. recommends rear-facing to 2 years of age or the car seat manufacturer’s max height/weight (recommendation, not law). |
| Forward-facing | Statute requires all children 6 years of age or younger to be properly secured in an appropriate child safety restraint; ITD recommends forward-facing to the seat’s upper limits (age ~4, 40–65 lbs). |
| Booster seat | Covered under the statute’s “appropriate child safety restraint” for children 6 and younger (includes booster seats); ITD recommends boosters from ~4 to at least 8 years or 4’9″. |
| Seat belt only | Age 7+ (children 6 and younger must be in a child safety restraint). |
Fines and penalties in Idaho
Fine: Fine of up to $69 to the driver.
Front seat rules in Idaho
Front-seat rule: not specified in state law. Note: ITD recommends children ride in the back seat until age 13).
The official law
- Statute: Idaho Code § 49-672
- Official source: Idaho Transportation Department
Research note: Idaho’s statute sets no rear/forward/booster stages — only an age-triggered restraint requirement; stage guidance is ITD recommendation.
Idaho car seat law FAQs
What is the fine for a car seat violation in Idaho?
Fine: Fine of up to $69 to the driver.
When can my child stop using a booster seat in Idaho?
Covered under the statute’s “appropriate child safety restraint” for children 6 and younger (includes booster seats); ITD recommends boosters from ~4 to at least 8 years or 4’9″. Age 7+ (children 6 and younger must be in a child safety restraint).
Does Idaho law require rear-facing car seats?
Not mandated by statute; Idaho Transportation Dept. recommends rear-facing to 2 years of age or the car seat manufacturer’s max height/weight (recommendation, not law).
Can my child ride in the front seat in Idaho?
Front-seat rule: not specified in state law. Note: ITD recommends children ride in the back seat until age 13).
Where can I read the official Idaho car seat law?
Statute: Idaho Code § 49-672 Official source: Idaho Transportation Department.
Check another state
Driving across state lines? Requirements change at the border — use our interactive car seat law checker to look up any state by your child’s age, weight, and height.
Related state guides:
This page is for general informational purposes only and is not legal advice. Child passenger safety laws change — always verify current requirements with your state’s DMV, highway safety office, or the official statute linked below before making decisions.