Utah Code Title 10. Utah Municipal Code § 10-3b-204. Presenting council action to mayor--Veto--Reconsideration--When ordinance, tax levy, or appropriation takes effect

(2)(a) The mayor in a municipality operating under a council-mayor form of municipal government may veto an ordinance or tax levy or all or any part of an appropriation passed by the council.

(b) If a mayor vetoes an ordinance or tax levy or all or any part of an appropriation, the mayor shall return the ordinance, tax levy, or appropriation to the council within 15 days after the council presents the ordinance, tax levy, or appropriation to the mayor, with a statement explaining the mayor's objections.

(a) the mayor signs the ordinance, tax levy, or appropriation;

(b) the mayor fails to sign the ordinance, tax levy, or appropriation within 15 days after the council presents the ordinance, tax levy, or appropriation to the mayor;  or

(c) following a veto, the council reconsiders the ordinance, tax levy, or appropriation and passes it by a vote of at least two-thirds of all council members.