571—46.31(321I) Unlawful operation.
- 46.31(1) At a rate of speed greater than reasonable or proper under all existing circumstances or greater than the posted speed, whichever is less. In no event shall a person operate any vehicle in a parking area of or adjacent to a designated riding area in excess of five miles per hour.
- 46.31(2) In a careless, reckless, or negligent manner so as to endanger the person or property of another or to cause injury or damage thereto.
- 46.31(3) While under the influence of intoxicating substances or narcotics or habit-forming drugs.
- 46.31(4) Without a lighted headlight and taillight from sunset to sunrise and at such other times when conditions provide insufficient lighting to render clearly discernible persons and vehicles at a distance of 500 feet ahead.
- 46.31(5) Off established or marked trails or in prohibited areas.
- 46.31(6) In violation of official signs posted by the local sponsor or by the department consistent with its relationship to the local sponsor under 571—46.53(321I).
- 46.31(7) If the person’s license to operate a motor vehicle is under suspension, revocation, bar, disqualification, cancellation or denial by this state or any other state.
A person shall not operate a regulated vehicle in any of the following instances:
[ARC 9221C, IAB 5/14/25, effective 6/18/25]