(1) An operator of a commercial motor vehicle, as defined under Section 53-3-102, shall upon approaching a railroad grade crossing:
(a) except as provided in Subsection (2), slow down and check that the tracks are clear of an approaching railroad train or other on-track equipment;
(b) stop within 50 feet, but not closer than 15 feet, from the nearest rail of the railroad track before reaching the crossing if the tracks are not clear;
(c) obey all traffic control devices or the directions of a peace officer, or other crossing official at the crossing; and
(d) before proceeding over a railroad grade crossing:
(i) ensure that the vehicle has sufficient space to drive completely through a railroad grade crossing without stopping; and
(ii) ensure that the vehicle has sufficient undercarriage clearance to safely and completely pass through the crossing.
(2) Except as provided in Subsection (3), the operator of a vehicle described in 49 CFR 392.10:
(a) shall stop within 50 feet, but not closer than 15 feet, from the nearest rail of the railroad track before crossing, at grade, any track of a railroad;
(b) while stopped, shall:
(i) look in both directions along the railroad track for:
(A) a sign of an approaching railroad train or other on-track equipment; or
(B) a signal indicating the approach of a railroad train or other on-track equipment; and
(ii) listen for a signal indicating the approach of a railroad train or other on-track equipment;
(c) may proceed across the railroad track only when reasonably safe to cross; and
(d) after stopping and safely proceeding, may not manually shift gears while crossing the railroad track.
(3) This section does not apply at a:
(a) railroad grade crossing where traffic is controlled by a peace officer or other crossing official;
(b) railroad grade crossing where traffic is regulated by a traffic-control signal;
(c) railroad grade crossing where a traffic-control device gives notice that the stopping requirements of this section are not applicable; or
(d) other railroad grade crossings excluded under 49 CFR 392.10.
(4) A violation of this section is an infraction.