Utah Code § 10-20-203

(1) Before preparing a proposed general plan or a comprehensive general plan amendment, each municipality within a county of the first or second class shall provide 10 calendar days notice of the municipality's intent to prepare a proposed general plan or a comprehensive general plan amendment: (a) to each affected entity; (b) to the Utah Geospatial Resource Center created in Section 63A-16-505; (c) to the association of governments, established in accordance with an interlocal agreement under Title 11, Chapter 13, Interlocal Cooperation Act, of which the municipality is a member; and (d) for the municipality, as a class A notice under Section 63G-30-102, for at least 10 days. (2) Each notice under Subsection (1) shall: (a) indicate that the municipality intends to prepare a general plan or a comprehensive general plan amendment, as the case may be; (b) describe or provide a map of the geographic area that will be affected by the general plan or amendment; (c) be sent by mail, e-mail, or other effective means; (d) invite the affected entities to provide information for the municipality to consider in the process of preparing, adopting, and implementing a general plan or amendment concerning: (i) impacts that the use of land proposed in the proposed general plan or amendment may have; and (ii) uses of land within the municipality that the affected entity is considering that may conflict with the proposed general plan or amendment; and (e) include the address of an Internet website, if the municipality has one, and the name and telephone number of an individual where more information can be obtained concerning the municipality's proposed general plan or amendment. (3) A municipality shall send the newly adopted general plan and comprehensive general plan amendments to the relevant association of governments within 45 days of the date of adoption.