The following response is based solely on the question and background information provided. As we do not have all of the facts particular to your contract, program, and situation, we highly recommend you consult your Contracting Officer and Legal Office for guidance.
The general policy at FAR 5.002 is: "Contracting officers must publicize contract actions in order to --
(a) Increase competition;
(b) Broaden industry participation in meeting Government requirements; and
(c) Assist small business concerns, veteran-owned small business concerns, service-disabled veteran-owned small business concerns, HUBZone small business concerns, small disadvantaged business concerns, and women-owned small business concerns in obtaining contracts and subcontracts."
FAR 18.103 states that "Contracting officers need not submit a synopsis notice when there is an unusual and compelling urgency and the Government would be seriously injured if the agency complied with the notice time periods (See 5.202(a)(2).)" The notice time periods referenced in FAR 5.202(a)(2) are spelled out at FAR 5.203.