PSC.
PSC. During contingency operations PSC means a company employed by the DoD performing private security functions under a covered contract. In a designated area of combat operations or other significant military operations, the term PSC expands to include all companies employed by U.S.G. agencies performing private security functions under a covered contract.
Source
32 CFR § 159.3
Scoping language
Unless otherwise noted, these terms and their definitions are for the purpose of this part.