Utah Code Ann. § 15A-5-203
(1) For IFC, Chapter 5, Fire Service Features:
(a) In IFC, Chapter 5, a new Section 501.5, Access grade and fire flow, is added as follows: "An authority having jurisdiction over a structure built in accordance with the requirements of the International Residential Code as adopted in the State Construction Code, may require an automatic fire sprinkler system for the structure only by ordinance and only if any of the following conditions exist:
(i) the structure:
(iv)
(2) For IFC, Chapter 6, Building Services and Systems: