Utah Code § 41-6a-718: Operation of a snowplow -- Approaching a snowplow -- Prohibition to pass.

(1)

(a) A snowplow operator shall ensure that a snowplow in operation on a highway displays flashing yellow lights.

(b) An individual operating a snowplow as an agent of a highway authority, while engaged in the removal of snow or ice on a highway, may not be charged with a violation under this chapter related to parking, standing, turning, backing, lighting, or yielding the right-of-way.

(c) Notwithstanding the exemptions described in Subsection (1)(b), an individual operating a snowplow shall operate the snowplow with reasonable care.

(2) If a snowplow is displaying flashing yellow lights, an individual operating a vehicle in the vicinity of the snowplow may not pass or overtake a snowplow on a side of the snowplow where a plow blade is deployed.

(3) If three or more snowplows are operating in echelon formation, an individual operating a vehicle in the vicinity of the snowplows may not overtake or pass the snowplows on either side of the snowplows.

(4) A violation of Subsection (2) or (3) is an infraction.