Utah Code § 35A-3-110: Third party obligation -- Interest.

(1) If the department expends public assistance on behalf of a recipient for services or supplies, for which another person is obligated to reimburse the department, the department shall notify the person of the obligation to make the reimbursement.

(2) Upon receiving notification under Subsection (1), the notified person shall make the reimbursement within 60 days.

(3) After the time period established under Subsection (2), the department shall charge interest on any unpaid balance at the rate of 8% per annum unless an extension is granted by the department.