Pub. L. 115–97, title I, § 13306(b)(3), Dec. 22, 2017, 131 Stat. 2129, provided that: “The amendments made by this subsection [enacting this section] shall apply to amounts paid or incurred on or after the date of the enactment of this Act [Dec. 22, 2017], except that such amendments shall not apply to amounts paid or incurred under any binding order or agreement entered into before such date. Such exception shall not apply to an order or agreement requiring court approval unless the approval was obtained before such date.”