Pub. L. 109–163, div. A, title V, § 551(b), Jan. 6, 2006, 119 Stat. 3256, provided that: “Section 920a of title 10, United States Code (article 120a of the Uniform Code of Military Justice), as added by subsection (a), applies to offenses committed after the date that is 180 days after the date of the enactment of this Act [Jan. 6, 2006].”