22 C.F.R. § 513.405

(a) Suspension may be imposed in accordance with the provisions of §§ 513.400 through 513.413 upon adequate evidence:

(1) To suspect the commission of an offense listed in § 513.305(a); or

(2) That a cause for debarment under § 513.305 may exist.

(b) Indictment shall constitute adequate evidence for purposes of suspension actions.