The commission shall charge a governmental agency simple interest at the Category A rate of interest established in § 54-3-16 on the amount of money subject to reimbursement under § 50-7-15 from the date of the expenditure to the date of payment. Source: SL 1966, ch 4 ; SL 1992, ch 60 , § 2; SL 1997, ch 16 , § 16; SL 1997, ch 269 , § 1; SL 2014, ch 222 , § 55.