Motorcycle Accident Claims in Iowa
The Iowa helmet law, whether lane splitting is legal, how fault is shared after a motorcycle crash, and the deadline to sue.
Short answer: Iowa has no state law that requires motorcycle riders to wear a helmet. Iowa Code ch. 321 (reviewed)
| Motorcycle helmet law | Iowa has no state law that requires motorcycle riders to wear a helmet. Reviewed Iowa Code chapter 321 (Motor Vehicles and Law of the Road, full 2026 chapter text searched for 'helmet') on 2026-10-28; no provision found. The motorcycle operation section (§ 321.275) contains no helmet or eye-protection requirement. Source: Iowa Code ch. 321 (reviewed) |
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| Lane splitting | Lane splitting is illegal in Iowa: a motorcycle or motorized bicycle may not be operated between lanes of traffic or between adjacent lines or rows of vehicles, and may not pass in the same lane occupied by the vehicle being passed unless that vehicle is also a motorcycle or motorized bicycle. Motorcycles may ride no more than two abreast in a single lane, and other drivers may not deprive a motorcyclist of the full use of a lane. Source: Iowa Code § 321.275(4) |
| Fault rule (comparative negligence) | Modified comparative fault (51% bar). An injured person's own fault does not bar recovery unless it is greater than the combined fault of the defendants, third-party defendants and released persons; damages are reduced by the injured person's percentage of fault. Source: Iowa Code § 668.3 |
| Minimum car insurance | Drivers must have financial liability coverage in effect. The minimum amounts are $20,000 for injury or death of one person, $40,000 for injury or death of two or more people in one accident, and $15,000 for property damage (20/40/15). Source: Iowa Code §§ 321.20B, 321A.1(11) |
| Deadline to sue for an injury | A lawsuit founded on injuries to the person (or reputation), whether based on contract or tort, must be filed within two years after the claim accrues. Source: Iowa Code § 614.1(2) |
More Iowa personal injury & wrongful death
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FAQ
Do you have to wear a motorcycle helmet in Iowa?
Iowa has no state law that requires motorcycle riders to wear a helmet.
Is lane splitting legal in Iowa?
Lane splitting is illegal in Iowa: a motorcycle or motorized bicycle may not be operated between lanes of traffic or between adjacent lines or rows of vehicles, and may not pass in the same lane occupied by the vehicle being passed unless that vehicle is also a motorcycle or motorized bicycle. Motorcycles may ride no more than two abreast in a single lane, and other drivers may not deprive a motorcyclist of the full use of a lane.
Can you recover damages if you were partly at fault in Iowa?
Modified comparative fault (51% bar). An injured person's own fault does not bar recovery unless it is greater than the combined fault of the defendants, third-party defendants and released persons; damages are reduced by the injured person's percentage of fault.
What is the minimum car insurance required in Iowa?
Drivers must have financial liability coverage in effect. The minimum amounts are $20,000 for injury or death of one person, $40,000 for injury or death of two or more people in one accident, and $15,000 for property damage (20/40/15).
What is the statute of limitations for personal injury in Iowa?
A lawsuit founded on injuries to the person (or reputation), whether based on contract or tort, must be filed within two years after the claim accrues.
General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.