48 C.F.R. § 2803.901
As used in this subpart-
Covered Individual is defined as an employee of a contractor at any tier required by the Department to sign a Non-Disclosure Agreement (NDA), whether the NDA is directly between the Covered Individual and the Department or between the Covered Individual and a contractor, and whether the NDA is required by a contract or otherwise (e.g., pursuant to a vendor demonstration, product trial, market research effort, or other non-contract efforts).
General NDA means an NDA, other than an Intelligence-Related NDA, required by the Department to be signed by a Covered Individual.
Intelligence-Related NDA means any NDA required by the Department to be signed by a Covered Individual who is connected with the conduct of an intelligence or intelligence-related activity.
Non-Disclosure Agreement means any nondisclosure or confidentiality agreement, policy, or form, including the agreements in Standard Forms 312 (Classified Information Nondisclosure Agreement) and 4414 (Sensitive Compartmented Information Nondisclosure Agreement).
48 C.F.R. §2803.901