Pub. L. 114–113, div. Q, title IV, § 431(c), Dec. 18, 2015, 129 Stat. 3125, provided that: “The amendments made by this section [enacting this section] shall apply to proceedings commenced after the date which is 180 days after the date of the enactment of this Act [Dec. 18, 2015] and, to the extent just and practicable, all proceedings pending on such date.”