5306.302-2 Unusual and Compelling Urgency
(c)(1) Contracting officers must notify their SCO and cognizant HCA as soon as practicable when contemplating the use of this authority for a J&A requiring SAF/AQ or SAF/SQ approval.
(d)(1)(ii) The authority to make this determination for the DAF is the SCO or the J&A approval authority, whichever is higher. This authority may not be further delegated.