Nev. Rev. Stat. § 484D.645
1. Except as otherwise provided in subsection 2, a vehicle that is used by a regional transportation commission or its contractor to provide public mass transportation may be operated or moved upon a public highway, other than a highway within the designated interstate system, if the maximum weight does not exceed, on a single axle with:
2. A vehicle with a maximum weight on a single axle with single tires of more than 20,000 pounds but not more than 29,000 pounds that is used by a regional transportation commission or its contractor to provide public mass transportation as part of a demonstration project may be operated or moved upon a public highway, other than a highway within the designated interstate system, if the tires are not less than 20 inches in width and the Department of Transportation, after conducting an evaluation of the vehicle:
3. As used in this section:
(Added to NRS by 1993, 1414; A 2001, 747)—(Substituted in revision for NRS 484.7485)