Utah Code § 10-20-212

Before implementing an amendment to adopted specifications for public improvements that apply to a subdivision or a development, a municipality shall: (1) hold a public hearing; (2) mail a notice 30 days or more before the date of the public hearing to: (a) each person who has submitted a land use application for which the land use authority has not issued a land use decision; and (b) each person who makes a written request to receive a copy of the notice; and (3) allow each person who receives a notice in accordance with Subsection (2) to provide public comment in writing before the public hearing or in person during the public hearing.