Iowa Car Seat Laws (2026): Age, Weight & Penalty Rules

Iowa requires a rear-facing seat only while a child is both under 1 year old AND under 20 pounds, then moves to a combined restraint-system rule through age 5 and a restraint-or-belt election from age 6 to 17, as of 2026.

Jurisdiction scope: This page covers Iowa's statutory child passenger restraint requirements under Iowa Code § 321.446. It does not cover other states' laws.

Iowa Car Seat Requirements at a Glance

Rear-Facing Requirement: Under 1 AND Under 20 Pounds

Iowa's rear-facing duty is narrower than in many other states: it only applies to a child who is both under 1 year old and weighs less than 20 pounds at the same time. As soon as either condition stops being true (the child turns 1, or reaches 20 pounds, whichever happens first), the rear-facing requirement ends and the child instead falls under the broader restraint-system rule described below. A child who is still under 1 but has already reached 20 pounds is not covered by the rear-facing paragraph at all.

Restraint System Requirement Through Age 5

Once the rear-facing duty ends, Iowa law requires any child under 6 who "does not meet the description" of the rear-facing paragraph to be secured in a child restraint system used according to the manufacturer's instructions. The statute does not set a separate age, weight, or height cutoff for a booster stage within this age range, and it does not require a specific seat orientation. Iowa's own definition of "child restraint system" includes a belt-positioning seat or booster seat, so using a booster for a child in this age range is one way of satisfying the requirement, not merely a recommendation. Figures like 4 feet 9 inches or 80 pounds sometimes cited for booster graduation are general child-passenger-safety guidance, not a threshold written into section 321.446 itself; the statute sets no height or weight figure in this age range beyond the 20-pound rear-facing limit.

Ages 6 to 17: Restraint System or Seat Belt

From age 6 until a child turns 18, Iowa law allows either a child restraint system or a safety belt/harness approved under Iowa Code § 321.445. The two options are treated as interchangeable ways to satisfy the requirement. A parent may choose to keep a 6-, 7-, or 8-year-old in a booster, or move them to a regular seat belt, and either choice complies with the statute.

Front-Seat Placement in a Motor Home or Motorsports RV

Iowa's exemption for motor homes and motorsports recreational vehicles carries one narrow carve-out: the exemption does not apply to a child transported in the passenger seat situated directly to the driver's right in one of those vehicles. In that specific seating position, the restraint requirement is reinstated even though motor homes and motorsports RVs are otherwise exempt from the statute.

Exemptions

The under-6 and 6-to-17 restraint duties themselves only reach "a motor vehicle subject to registration," and each expressly carves out a school bus or a motorcycle from that duty from the outset, not as a listed exemption but built into subsections 1 and 2. Beyond that, Iowa Code § 321.446(3) exempts peace officers acting on official duty; the transportation of children in 1965-model-year-or-older vehicles, authorized emergency vehicles, buses, or motor homes/motorsports RVs (subject to the front-seat carve-out above); a child certified by a physician licensed under Iowa Code chapter 148, or a physician assistant licensed under Iowa Code chapter 148C, as having a medical, physical, or mental condition that prevents or makes inadvisable securing the child in a restraint system, safety belt, or safety harness; and a back-seat occupant for whom no safety belt is available because all belts are in use by other occupants or are blocked by a child restraint system installed in that seating position.

Penalty for a Car Seat Violation in Iowa

A violation is a simple misdemeanor, charged as a scheduled violation under Iowa Code § 805.8A(14)(c). Who receives the citation depends on the circumstances: for a passenger under 14, the citation goes to the vehicle's operator; for a passenger 14 or older who is able to fasten a belt themselves, the citation goes to that passenger instead. In a taxicab or transportation network company vehicle, the citation goes to the parent, guardian, or other responsible adult traveling with the child rather than the driver, unless the child is 14 or older and able to fasten a seatbelt, in which case the child is cited. The accompanying adult remains the one cited for a child 14 or older who is unable to fasten a seatbelt because of a temporary or permanent disability, under Iowa Code § 321.446(4)(c).

Iowa Code § 321.446(5) gives narrower relief than a general citation waiver. A person who is first charged with a violation of subsection 1, the under-6 restraint duties, and who had not already purchased or acquired a child restraint system, avoids conviction by producing proof in court, within a reasonable time, that they have since purchased or acquired one that meets federal motor vehicle safety standards. That relief reaches only a first subsection-1 charge; it does not extend to a subsection 2 violation for a child 6 through 17, and it does not apply to a repeat offender. Separately, a failure to use a required restraint system, safety belt, or safety harness under this section does not constitute negligence and is not admissible as evidence in a civil action, under Iowa Code § 321.446(6).

Disclaimer: This article provides general legal information about Iowa's child passenger restraint law as of 2026. It is not legal advice. Statutes and enforcement practices change; verify the current text of Iowa Code § 321.446 before relying on it, and consult a lawyer licensed in Iowa for advice about a specific situation. Safety recommendations referenced on this page are guidance, not law, and may set a higher standard than Iowa's legal minimum.

Related reading: Iowa car seat laws hub, Iowa DUI laws, Iowa window tint laws, Iowa 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 Iowa's car seat law?

Iowa Code § 321.446 requires a rear-facing restraint only while a child is under 1 year old AND under 20 pounds, a general child restraint system through age 5, and either a restraint system or a seat belt from age 6 through 17.

When can a child stop riding rear-facing in Iowa?

As soon as the child turns 1 OR reaches 20 pounds, whichever comes first. Both the age-1 and 20-pound conditions have to be true at the same time for the rear-facing duty to apply.

Does Iowa require a booster seat for older children?

Iowa's statute does not set a separate, mandatory booster-specific age or weight threshold. A child restraint system, which by definition includes a booster seat, satisfies the requirement through age 5, and from 6 through 17 a booster or a regular seat belt both comply.

Who gets the ticket for a car seat violation in Iowa?

Usually the vehicle's operator, if the passenger is under 14. A passenger 14 or older who can fasten a belt is cited directly. In a taxicab or rideshare vehicle, the citation goes to the parent, guardian, or responsible adult traveling with the child rather than the driver, unless the child is 14 or older and able to fasten a seatbelt; the adult stays liable for a 14-or-older child who cannot fasten a seatbelt due to a temporary or permanent disability.

What is the penalty for a car seat violation in Iowa?

It is a simple misdemeanor, charged as a scheduled violation under Iowa Code § 805.8A(14)(c). Iowa Code § 321.446(5) is not a general citation waiver: a person facing a first charge under subsection 1, the under-6 restraint duties, who had not already purchased a restraint system, avoids conviction by producing proof in court, within a reasonable time, that they have since bought or acquired one meeting federal safety standards. It does not cover a subsection 2 violation for a child 6 through 17, or a repeat offense.