Wyo. Stat. § 31-5-924 (2026)

(a) Whenever a motor vehicle including those referred to
in W.S. 31-5-901(c) if equipped with multiple-beam lamps is
being operated on a highway during the times specified in W.S.
31-5-910, 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:

          (i) Whenever a driver of a vehicle approaches an
oncoming vehicle, the driver shall, before coming within five
hundred (500) feet of the oncoming vehicle 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, shall be aimed to avoid
glare at all times, regardless of road contour and loading;
          (ii) Whenever the driver of a vehicle approaches
another vehicle within three hundred (300) feet from the rear,
the driver shall use a distribution of light other than the
uppermost distribution of light.