§ 321.415 — Required usage of lighting devices

Iowa § 321.415

• Jurisdiction: Iowa
• Title VIII: TRANSPORTATION
• Ch. 321: MOTOR VEHICLES AND LAW OF THE ROAD

Text

1. Whenever a motor vehicle is being operated on a roadway or shoulder during the times
specified in section 321.384, the driver shall use a distribution of light, or composite beam,
directed high enough and of sufficient intensity to reveal persons and vehicles at a safe
distance in advance of the vehicle, subject to the following requirements and limitations:
a. Whenever a driver of a vehicle approaches an oncoming vehicle within one thousand
feet, the driver shall use a distribution of light, or composite beam, so aimed that the glaring
rays are not projected into the eyes of the oncoming driver. The lowermost distribution of
light, or composite beam, specified in section 321.409, subsection 1, paragraph “b”, shall be
deemed to avoid glare at all times, regardless of road contour and loading.
b. Whenever the driver of a vehicle follows another vehicle within four hundred feet to
the rear, except when engaged in the act of overtaking and passing, the driver shall use a
distribution of light permissible under this chapter other than the uppermost distribution of
light specified in section 321.409, subsection 1, paragraph “a”.

2. The provisions of subsection 1, paragraphs “a” and “b”, do not apply to motorcycles or
motorized bicycles being operated between sunrise and sunset.

Legislative History

[C39, §5034.23 – 5034.25; C46, 50, 54, §321.414 – 321.416; C58, 62, 66, 71, 73, 75, 77, 79, 81, §321.415]