Seat belts and child seats in Iowa (2026)

Last reviewed: 9 October 2026

In short: In Iowa the driver and front-seat passengers must wear a seat belt, and police may stop a vehicle for this alone; adults in the rear seats are not required to buckle up. Children under 6 need a child restraint system, which may be a booster seat, and children aged 6 to under 18 a child restraint or seat belt. The scheduled fine for an adult seat-belt violation is $70.

RuleWhat applies
Seat belt compulsory in front seatsPassenger carsYes [1]
Seat belt compulsory in rear seatsPassenger carsNo [2]
Child restraint required untilPassenger carsA child under 1 year and under 20 lb must be in a rear-facing child restraint system; a child under 6 must be in a child restraint system; a child aged 6 to under 18 must be in a child restraint system or safety belt. [2]
Children in the front seatPassenger carsSection 321.446 sets no rule on which seat a child must use; the duty applies in any seat. [2]
Rear-facing child seat in front with active airbagPassenger cars⚠ Not yet verified
Can police stop you for this alone?Passenger carsPrimary enforcement for the front seat: Iowa has a primary seat belt law covering the driver and front-seat passengers. Passengers over 18 in rear seats are not required to wear a belt. [3]
Booster seat untilPassenger carsChildren under 6 must be secured in a child restraint system, which by law includes a belt-positioning or booster seat. From 6 to under 18 a child restraint system or a safety belt may be used. [2]
Fine for not wearing a seat beltPassenger carsThe scheduled fine for an adult seat-belt violation (Iowa Code 321.445) is $70. For a child restraint violation (321.446) it is $135. [4]

Notes

  • Section 321.445 requires belts for the driver and front seat occupants; rear-seat occupants are covered only through the rule for persons under 18 in section 321.446.
  • The child restraint statute read does not state a rule on rear-facing child seats and an active front passenger airbag.

Sources

  1. Iowa Legislature: Iowa Code 321.445 Safety belts and safety harnesses - use required (consulted 9 October 2026) · all sources
  2. Iowa Legislature: Iowa Code 321.446 Child restraint devices (consulted 9 October 2026) · all sources
  3. Iowa Department of Public Safety: Iowans support hands-free legislation (news release, 28 August 2023) (consulted 10 October 2026) · all sources
  4. Iowa Legislature: Iowa Code 805.8A Criminal and local alcohol and tobacco and vapor product citations: motor vehicles (consulted 10 October 2026) · all sources

Iowa and neighbouring states

StateSeat belt compulsory in front seatsSeat belt compulsory in rear seatsChild restraint required untilChildren in the front seatRear-facing child seat in front with active airbag
Iowa
Yes
Under 18 only
Child seat under 6; seat or belt to 18
No seating rule
⚠ Not yet verified
Illinois
Yes, all seats
Yes, all seats
Restraint under 8; seat belt from 8 to 15
No seating rule
⚠ Not yet verified
Minnesota
Yes, driver and all passengers
Yes, driver and all passengers
Seats by age; adult belt from age 9 or when outgrown
Under 13 in rear seat when available
No if airbag active and rear seat available (under 6/60 lb)
Missouri
Yes, driver and front-seat passengers
No for adults; children under 16 must be secured
Seat under 4 or 40 lb; booster to age 8, 80 lb, 4 ft 9 in
No general front-seat rule; overflow children sit behind
⚠ Not yet verified
Nebraska
Yes
Under 18 only
Under 8 in a child seat; 8 to 17 in a belt or seat
Under 8: not the front seat if another seat is free
⚠ Not yet verified
South Dakota
Yes
Only passengers aged 5 to 17
Under 5 (seat belt at 40 lb or more)
⚠ Not yet verified
⚠ Not yet verified
Wisconsin
Yes
Yes
Under 8 (booster to 80 lb or 57 in)
Young children: back seat if the vehicle has one
⚠ Not yet verified

More rules in Iowa

  • CannabisPossession for personal use: Criminal offence · Growing at home: No
  • Car speed limitsBuilt-up areas: 20 mph business, 25 mph residential · Outside built-up areas (single carriageway): 55 mph
  • Minimum age for a car driving licenceMinimum age for a car licence: 16 (intermediate licence) · Earliest age to drive a car supervised: 14 (instruction permit)
  • E-bikes and speed pedelecsLegal class: Class 1-3, a bicycle · Minimum age: Class 3: 16
  • FireworksConsumers may buy and use category F2 fireworks: Yes (consumer fireworks) · Minimum age to buy: 18
  • Knives and pepper sprayFolding pocket knives: Only an offence if used in a crime · Locking or one-handed knives: Ballistic knife: class D felony; switchblade listed
  • Statutory minimum wageNational statutory minimum wage: Yes · Current adult minimum wage (gross): $7.25 per hour (or federal if higher)
  • Using a mobile phone while drivingHolding a phone while driving banned: Banned · Hands-free use: Hands-free allowed
  • Tobacco and nicotine age limitsMinimum age to buy tobacco: 21 · Minimum age to buy e-cigarettes: 21
  • Drinking age and alcohol salesMinimum age to buy beer and wine: 21 · Minimum age to buy spirits: 21
  • Drink-driving limitsBlood alcohol limit for ordinary drivers: 0.08% · Lower limit for novice or young drivers: 0.02% (under 21)

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General information, not legal advice. Rules change: check the official source before you fly or ride.