Utah Code § 10-20-213

(1) (a) Before any hearing or public meeting to consider a proposed land use regulation or land use application modifying sign regulations for an illuminated sign within any unified commercial development, as defined in Section 72-7-504.6, or within any planned unit development, a municipality shall give written notice of the proposed illuminated sign to: (i) each property owner within a 500 foot radius of the sign site; (ii) a municipality or county within a 500 foot radius of the sign site; and (iii) any outdoor advertising permit holder described in Subsection 72-7-506(2)(b). (b) The notice described in Subsection (1)(a) shall include the schedule of public meetings at which the proposed changes to land use regulations or land use application will be discussed. (2) A municipality shall require the property owner or applicant to commence in good faith the construction of the commercial or industrial development within one year after the installation of the illuminated sign.