Idaho Car Seat Laws (2026): Age, Rules & Exemptions

Idaho law does not split car seat requirements into separate rear-facing, forward-facing, and booster stages. Instead, one undifferentiated rule binds a noncommercial motor vehicle operator for every child age 6 or younger: the child must ride in a federally compliant child safety restraint, as of 2026.

Jurisdiction scope: This page covers Idaho's statutory child passenger restraint requirement under Idaho Code § 49-672. It does not cover other states' laws.

Idaho Car Seat Requirement at a Glance

Idaho's statute does not create a separate rear-facing, forward-facing, or booster-seat tier the way many other states do. The text simply requires "a child who is six years of age or younger" to be secured in a child safety restraint meeting the federal standard, and leaves orientation and seat type to the restraint's own instructions. There is no statutory language for children 7 and older within section 49-672 itself. Idaho Code § 49-673, the state's general seat belt law, expressly carves out section 49-672 from its own coverage ("except as provided in section 49-672, Idaho Code"), which means a child 7 or older is covered by section 49-673's seat belt duty instead, described below.

When the Duty Applies

The restraint requirement binds only a noncommercial motor vehicle operator, the statute's own term, and only attaches in a motor vehicle "manufactured with seat belts after January 1, 1966," the statute's own phrase. A vehicle manufactured before that date, or one that was never manufactured with seat belts at all, is outside the statute's reach altogether, regardless of a child's age. A commercial operator, such as a taxi or rideshare driver, is outside section 49-672's reach entirely, regardless of the vehicle's manufacture date.

Exemptions

Idaho Code § 49-672(2) provides two carve-outs. If every seat belt in the vehicle is already in use, the statute does not require an additional restraint for an otherwise-unrestrained child, but that child must be placed in the rear seat if the vehicle has one. A child may also be removed from a restraint and held by the attendant for nursing or another immediate physiological need. Separately, and not as an enumerated exemption but as a limit on who and which vehicles subsection (1) reaches at all, the duty binds only a noncommercial motor vehicle operator, and it never applies to a vehicle manufactured before January 1, 1966 or one that was never manufactured with seat belts.

Penalty for a Car Seat Violation in Idaho

Idaho Code § 49-672 itself sets no dollar figure, fine schedule, or offense classification for a violation; it is silent on enforcement consequences and carries no cross-reference to another Idaho Code section for a penalty. Idaho Code § 49-236(2) fills that gap: "It is an infraction for any person to violate any of the provisions of chapters 3, 4 and 6 through 9 of this title unless otherwise specifically provided." Section 49-672 sits in Title 49, Chapter 6, and specifies nothing otherwise, so a violation is an infraction by operation of section 49-236(2). The fixed penalty amount for that infraction is set by Idaho's infraction rules rather than by section 49-672 itself.

Disclaimer: This article provides general legal information about Idaho's child passenger restraint law as of 2026. It is not legal advice. Statutes and enforcement practices change; verify the current text of Idaho Code § 49-672 before relying on it, and consult a lawyer licensed in Idaho for advice about a specific situation. Safety recommendations referenced on this page, where noted, are guidance, not law, and may set a higher standard than Idaho's legal minimum.

Related reading: car seat laws in every state, Idaho DUI laws, Idaho window tint laws, Idaho traffic camera ticket laws, and hit and run laws.

Statutes cited reflect their in-force version as of 2026-09-16. Last updated: 2026-09-16.

Frequently Asked Questions

What is Idaho's car seat law?

Idaho Code § 49-672 requires a noncommercial motor vehicle operator transporting any child age 6 or younger to secure that child in a child safety restraint that meets federal motor vehicle safety standard no. 213. The statute does not separate rear-facing, forward-facing, or booster stages by age, weight, or height, and it does not bind a commercial operator such as a taxi or rideshare driver.

Does Idaho require a specific type of car seat by age?

No. Idaho's statute sets a single restraint duty through age 6 without specifying rear-facing, forward-facing, or booster requirements at particular ages. It leaves seat type and orientation to the restraint manufacturer's own instructions.

What is the fine for a car seat violation in Idaho?

Idaho Code § 49-672 does not state a penalty amount. Under Idaho Code § 49-236(2), a violation of Title 49, Chapter 6 is an infraction, and section 49-672 sits in that chapter, so the offense class is an infraction; the fixed dollar amount is set by Idaho's infraction rules rather than printed in section 49-672 itself.

Are older vehicles exempt from Idaho's car seat law?

Yes. The restraint requirement only applies to a vehicle manufactured with seat belts after January 1, 1966, the statute's own phrase. A vehicle from before that date, or one never manufactured with seat belts at all, is not covered.

What law covers a child 7 or older in Idaho?

Idaho Code § 49-673, the state's general seat belt law, which expressly excludes children covered by the section 49-672 car seat law from its own scope, meaning it picks up once a child turns 7. It requires each occupant of a motor vehicle with a gross vehicle weight of not more than 8,000 pounds that was manufactured with safety restraints meeting federal motor vehicle safety standard no. 208 to have a safety restraint properly fastened while the vehicle is in motion.