48 CFR §803.1103

1. (a)By use of the contract clause at 52.203-16, Preventing Personal Conflicts of Interest, the contracting officer shall require each contractor whose employees perform acquisition functions closely associated with inherently Governmental functions to obtain from each covered employee a signed non-disclosure agreement to prohibit disclosure of non-public information accessed through performance of a Government contract. See FAR 3.1103(a)(2)(iii).