Section, Pub. L. 109–469, title II, § 203, Dec. 29, 2006, 120 Stat. 3517; Pub. L. 112–234, § 2(c), Dec. 28, 2012, 126 Stat. 1624; Pub. L. 115–271, title VIII, § 8218(b), Oct. 24, 2018, 132 Stat. 4132, required the Government Accountability Office to conduct and supervise an audit and investigation and prepare and report every 3 years.