1. Every motor vehicle upon a highway within the state, at any time from sunset to sunrise, and at such other times when conditions such as fog, snow, sleet, or rain provide insufficient lighting to render clearly discernible persons and vehicles on the highway at a distance of five hundred feet ahead, shall display lighted headlamps as provided in section 321.415, subject to exceptions with respect to parked vehicles as provided in this chapter. However, an all-terrain vehicle shall display lighted headlamps as provided in section 321.415 at all times while the vehicle is operated on a highway.

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Terms Used In Iowa Code 321.384

  • All-terrain vehicle: means a motorized vehicle with not less than three and not more than six nonhighway tires that is limited in engine displacement to less than one thousand cubic centimeters and in total dry weight to less than one thousand two hundred pounds and that has a seat or saddle designed to be straddled by the operator and handlebars for steering control. See Iowa Code 321I.1
  • Condition: means a general problem that may be attributable to a defect in more than one part. See Iowa Code 322G.2
  • highway: means the entire width between property lines of every way or place of whatever nature when any part thereof is open to the use of the public, as a matter of right, for purposes of vehicular travel, except in public areas in which the boundary shall be thirty-three feet each side of the center line of the roadway. See Iowa Code 321I.1
  • state: when applied to the different parts of the United States, includes the District of Columbia and the territories, and the words "United States" may include the said district and territories. See Iowa Code 4.1
  • Vehicle: means any vehicle as defined in chapter 321. See Iowa Code 321H.2
 2. Whenever a requirement is established in this chapter as to the distance from which certain lamps and devices shall render objects visible or within which such lamps or devices shall be visible, that requirement shall apply during the times stated in subsection 1 of this section upon a straight level unlighted highway under normal atmospheric conditions unless a different time or condition is expressly stated.