(a) On the second business day that the State Treasury is open after the twenty-fifth day of the month, the Treasurer of State shall compute the balance of the State Highway and Transportation Department Fund, including all internal accounts and funds, including, but not limited to, the State Highway Special Construction Account, the State Aid Road Fund, the State Aid Street Fund, the State Highway and Transportation Department Fund, and any other funds administered by the Arkansas Department of Transportation during the preceding month and shall transfer on that day to the State Highway and Transportation Department Fund interest on the balance to be computed as authorized under § 19-3-518(d)(4), excluding the interest rate paid on open account deposits, during the preceding month.
(b)
(1) Except as provided in subdivision (b)(2) of this section, interest earned on the accounts described in subsection (a) of this section shall be classified as special revenues to be used as authorized under § 19-6-405.
(2) Interest income generated from the Arkansas Four-Lane Highway Construction and Improvement Bond Account shall be distributed as required under § 27-70-206.