Closing accounts, expenditure of remaining funds

14. a. After the commissioner has determined that a project financed through the authority has been completed, the commissioner may direct that any account established for such project be closed, provided that the funds in any such account are less than $1,000,000. The commissioner may further direct that any appropriated funds remaining in such closed accounts be credited to a special subaccount of the Special Transportation Fund. In the event that an account for a project that has been completed exceeds $1,000,000, the account shall not be closed and the funds credited to the special subaccount unless such action is approved by the Joint Budget Oversight Committee. b. Subject to approval by the State Treasurer, the commissioner may expend funds from the special subaccount established pursuant to subsection a. of this section for any purpose for which the Legislature has previously appropriated funds and which the authority is authorized to undertake pursuant to section 5 of P.L.1984, c.73 (C.27:1B-5). Any claims or costs which would have been paid from an account closed pursuant to this section may be paid from the special subaccount established pursuant to subsection a. of this section, or from any other funds appropriated for such purposes.