(b)(1) D&Fs shall be signed as follows:
(A) For a proposed contract not exceeding $78,500,000, the approval level is the HCA, or a
designee who-
(a) If a member of the armed forces, is a general or flag officer; or
(b) If a civilian, is serving in a position in grade GS 16 or above under the General Schedule (or in a comparable or higher position under another schedule).
(B) For a proposed contract over $78,500,000, the approval level is the NSPE.