32 C.F.R. § 21.425
The Head of a DoD Component, or his or her designee, may delegate to the heads of contracting activities (HCAs) within the Component, that Component's authority to make and administer awards, to appoint grants officers and agreements officers (see§§ 21.435 through 21.450 ), and to broadly manage the DoD Component's functions related to assistance instruments. The HCA is the same official (or officials) designated as the head of the contracting activity for procurement contracts, as defined at 48 CFR 2.101 . The intent is that overall management responsibilities for a DoD Component's functions related to nonprocurement instruments be assigned only to officials that have similar responsibilities for procurement contracts.
32 C.F.R. §21.425