(b) The office of the contracting officer must be organizationally situated to minimize any potential for undue influence and protect contracting officers from intra-organizational pressure to perform improper acts.
(S-90) Restrictions.
(1) Personnel in the 1101 job classification series are prohibited from being appointed or serving as Contracting Officers. This requirement is not waivable on either an individual or class basis.
(2) Commanders and others having administrative supervision over contracting officers must bear in mind that actions exceeding the authority of a contracting officer are not binding on the Government. Therefore, they shall not direct, or otherwise exert influence, upon a contracting officer(s) to take such actions.
[AFARS Revision #21, dated May 22, 2007]