Utah Admin. Code 850-110-800
Travel routes may be designated as open to motor vehicle use and areas may be designated as open to cross-country travel by the director through a written finding that such action is consistent with trust-management objectives, current and projected land uses, and resource-protection considerations. Routes or areas that have been designated open to motor vehicle use by the director shall be identified as specified in Subsection 41-22-10.1 by posting signs or designating by map or description. Additional designations with respect to route widths, date and time restrictions, or other restrictions shall also be identified through posted signs, map, or description. Posted signs shall conform to accepted interagency statewide OHV trail signing standards, and maps may be published in cooperation with other land-management agencies where practicable.
Utah Admin. Code R850-110-800