Subject to the provisions of subsection 2 of NRS 484D.685, the following vehicles must not exceed a width of 120 inches:

1. 1. Any trailer or semitrailer, including lift carriers and tip-bed trailers, used exclusively for the transportation of implements of husbandry by farmers or implement dealers.
2. 2. Special mobile equipment.
3. 3. Highway construction or maintenance equipment.

(Added to NRS by 1981, 203)—(Substituted in revision for NRS 484.760)