A prior section 6671, Pub. L. 89–10, title II, § 2301, as added Pub. L. 107–110, title II, § 201, Jan. 8, 2002, 115 Stat. 1648; amended Pub. L. 107–296, title XVII, § 1704(e)(8), Nov. 25, 2002, 116 Stat. 2315; Pub. L. 109–163, div. A, title V, § 515(g)(1), Jan. 6, 2006, 119 Stat. 3236, defined terms for division A of subpart 1 of part C of former subchapter II of this chapter, prior to repeal by Pub. L. 112–239, div. A, title V, § 541(d)(1), Jan. 2, 2013, 126 Stat. 1735.

Another prior section 6671, Pub. L. 89–10, title II, § 2301, as added Pub. L. 103–382, title I, § 101, Oct. 20, 1994, 108 Stat. 3633, set forth findings and purpose of former part relating to professional development demonstration project, prior to the general amendment of this subchapter by Pub. L. 107–110.

Section effective Dec. 10, 2015, except with respect to certain noncompetitive programs and competitive programs, see section 5 of Pub. L. 114–95, set out as an Effective Date of 2015 Amendment note under section 6301 of this title.