1996 - Subsec. (a)(1). Pub. L. 104-106, Sec. 4321(i)(13), substituted ''(as defined in section 403(12) of this title)'' for ''as defined in section 403 of this title'' in introductory provisions.

Pub. L. 104-106, Sec. 4301(a)(3)(A), substituted ''agrees to'' for ''has certified to the contracting agency that it will'' in introductory provisions.

Subsec. (a)(2). Pub. L. 104-106, Sec. 4301(a)(3)(B), substituted ''individual agrees'' for ''contract includes a certification by the individual''.

Subsec. (b)(1). Pub. L. 104-106, Sec. 4301(a)(3)(C), redesignated subpar. (B) as (A), struck out ''such certification by failing to carry out'' after ''contractor violates'', redesignated subpar. (C) as (B), and struck out former subpar. (A) which read as follows: ''the contractor or individual has made a false certification under subsection (a) of this section;''. 1994 - Subsec. (a)(1). Pub. L. 103-355 substituted ''greater than the simplified acquisition threshold (as defined in section 403(11) of this title) by any Federal agency, other than a contract for the procurement of commercial items as defined in section 403 of this title,'' for ''of $25,000 or more from any Federal agency'' in introductory provisions

For effective date and applicability of amendment by Pub. L. 104-106, see section 4401 of Pub. L. 104-106, set out as a note under section 251 of this title

For effective date and applicability of amendment by Pub. L. 103-355, see section 10001 of Pub. L. 103-355, set out as a note under section 251 of this title

Section 5160 of Pub. L. 100-690 provided that: ''Sections 5152 and 5153 (enacting this section and section 702 of this title) shall be effective 120 days after the date of the enactment of this subtitle (Nov. 18, 1988).''

Section 5151 of Pub. L. 100-690 provided that: ''This subtitle (subtitle D (Sec. 5151-5160) of title V of Pub. L. 100-690, enacting this chapter) may be cited as the 'Drug-Free Workplace Act of 1988'.''

Section 4804 of Pub. L. 100-690 required that regulations promulgated by agency heads be consistent with international obligations of United States, prior to repeal by Pub. L. 103-447, title I, Sec. 103(b), Nov. 2, 1994, 108 Stat. 4693