Utah Code § 41-6a-207: Uniform application of chapter -- Effect of local ordinances.

(1) The provisions of this chapter are applicable throughout this state and in all of its political subdivisions and municipalities.

(2) A local highway authority may not enact or enforce any rule or ordinance in conflict with the provisions of this chapter.

(3) A local highway authority may adopt:

(a) ordinances consistent with this chapter; and

(b) additional traffic ordinances not in conflict with this chapter.