48 C.F.R. § 23.503
As used in this subpart-
Controlled substance means a controlled substance in schedules I through V of section 202 of the Controlled Substances Act (21 U.S.C. 812 ), and as further defined in regulation at 21 CFR 1308.11 - 1308.15 .
Conviction means a finding of guilt (including a plea of nolo contendere) or imposition of sentence, or both, by any judicial body charged with the responsibility to determine violations of the Federal or State criminal drug statutes.
Criminal drug statute means a Federal or non-Federal criminal statute involving the manufacture, distribution, dispensing, possession, or use of any controlled substance.
Employee means an employee of a contractor directly engaged in the performance of work under a Government contract. Directly engaged is defined to include all direct cost employees and any other contract employee who has other than a minimal impact or involvement in contract performance.
Individual means an offeror/contractor that has no more than one employee including the offeror/contractor.
48 C.F.R. §23.503