Utah Code Ann. § 17C-1-406
(2) An agency may, without the approval of the taxing entity committee, elect to be paid 100% of annual tax increment for each year beyond the periods specified in Subsection 17C-1-404(2) to a maximum of 25 years, including the years the agency is paid tax increment under Subsection 17C-1-404(2), if:
(a) for an agency in a city in which is located all or a portion of an interchange on I-15 or that would directly benefit from an interchange on I-15:
(i) the tax increment paid to the agency during the additional years is used to pay some or all of the cost of the installation, construction, or reconstruction of:
(b) for an agency in a city of the first or second class: