The Drug-Free Workplace Act of 1988, referred to in subsec. (c)(3), is subtitle D (§§ 5151–5160) of title V of Pub. L. 100–690, Nov. 18, 1988, 102 Stat. 4304, which is classified generally to chapter 10 (§ 701 et seq.) of Title 41, Public Contracts. For complete classification of this Act to the Code, see Short Title note set out under section 701 of Title 41 and Tables.