045-1 Wyo. Code R. § 1-3
(a) "At-grade crossing" means the intersection of a public road and the track or tracks of any railroad corporation or street railway corporation in Wyoming, other than crossings using a grade separation structure.
(b) "Commission" means the Transportation Commission of Wyoming.
(c) "Detour" means the temporary rerouting of public road traffic to other roads immediately adjacent to a track crossing under construction.
(d) "Exempt crossing sign" means an official traffic-control device that gives notice that the stopping requirement imposed by W.S. 31-5-511 does not apply at a particular at-grade crossing.
(e) "MUTCD" means the Manual on Uniform Traffic Control Devices.
(f) "Public road agency" means a government agency, the state, a county, city, town, or other political entity having jurisdiction over a highway.
(g) "Public roads and highways" means a road, street, or highway operated, maintained, and legally dedicated according to Wyoming law to public use by the state or any of its political subdivisions, but shall not include private roads as specified in W.S. W.S. W.S. 24-1-101.
(h) "Temporary track crossing" means a temporary crossing of railroad tracks built for road agency construction activities and may or may not include public traffic.
(i) "WYDOT" mean the Wyoming Department of Transportation.
(j) "WYDOT's Standard Special Provisions" means the special conditions or requirements for contractors working on at-grade crossings.
045-1 Wyo. Code R. § 1-3