Section 705.050 - Center line of track: Overhead and side clearances1. With respect to all points at or above a point 13 feet 6 inches directly above the center line of track, minimum overhead and side clearances as prescribed in NAC 705.020 and 705.030 may be decreased to the extent defined by the half circumference of a circle having a radius of 8 feet 6 inches and tangent to a horizontal line 22 feet above the top rail at a point directly above the center line of track. For tunnels and through bridges, the radius may be 8 feet. Subsection 3 of NAC 705.020 and subsection 3 of NAC 705.030 apply to this subsection.2. The overhead and horizontal clearances specified in this chapter do not apply to engine houses. In shops and buildings in which freight cars are moved for repairs, there must be a minimum side clearance of 7 feet 8 inches from the center line of track for doorways and entrances.Nev. Admin. Code § 705.050
Pub. Service Comm'n, Railroad Gen. Order 11 § 3, eff. 6-21-76