(a)(4) The Under Secretary of Defense (Acquisition and Sustainment) may delegate this authority to—

(A) An Assistant Secretary of Defense; or

(B) For a defense agency, an officer or employee serving in, assigned, or detailed to that agency who—

(1) If a member of the armed forces, is serving in a rank above brigadier general or rear admiral (lower half); or

(2) If a civilian, is serving in a position with a grade under the General Schedule (or any other schedule for civilian officers or employees) that is comparable to or higher than the grade of major general or rear admiral.

(S-70) For a noncompetitive follow-on acquisition to a previous award for the same supply or service supported by a justification for other than full and open competition citing the authority at FAR 6.302-1, follow the procedures at PGI 206.304(a)(S-70).

(S-71) In accordance with section 823 of the National Defense Authorization Act for Fiscal Year 2020 (Pub. L. 116-92), the head of the procuring activity is the approval authority for a proposed sole-source 8(a) contract exceeding $100 million. This authority may only be delegated to an officer or employee who—

(1) If a member of the armed forces, is serving in a rank above brigadier general or rear admiral (lower half); or

(2) If a civilian, is serving in a position with a grade under the General Schedule (or any other schedule for civilian officers or employees) that is comparable to or higher than the grade of major general or rear admiral.