Utah Code Ann. § 59-2-509
(1) Subject to the other provisions of this section, land assessed under this part may continue to be assessed under this part if the land continues to comply with the requirements of this part, regardless of whether the land continues to have:
(3) Notwithstanding Subsection (1), land is withdrawn from this part if:
(a) there is a change in:
(b) after a change described in Subsection (3)(a):