No person, other than an individual, shall be considered a responsible source, under the meaning of such term as defined in section
403
(8) of this title, for the purposes of being awarded a contract for the procurement of any property or services of a value 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
(12) of this title), unless such person agrees to provide a drug-free workplace by—