Pub. L. 106–554, § 1(a)(3) [title VI, § 639(c)], Dec. 21, 2000, 114 Stat. 2763, 2763A–168, provided that: “The amendments made by this section [enacting this subchapter] shall take effect 30 days after the date of enactment of this Act [Dec. 21, 2000] and shall apply to any conviction of a felony entered by a Federal or State court on or after that date.”