13 CFR § 125.27
Who may protest the status of an SDVO SBC?
November 10, 2020
(a) For Sole Source Procurements. SBA or the contracting officer may protest the proposed awardee's service-disabled veteran status.
(b) For all other procurements, including Multiple Award Contracts (see §125.1), any interested party may protest the apparent successful offeror's SDVO SBC status.
[69 FR 25269, May 5, 2004, as amended at 78 FR 61144, Oct. 2, 2013. Redesignated at 81 FR 48585, July 25, 2016]