28 C.F.R. § 27.1
(a) When an employee of, or applicant for employment with, the Federal Bureau of Investigation (FBI) (FBI employee) makes a disclosure of information to a supervisor in the direct chain of command of the employee, up to and including the Attorney General; to the Department of Justice's (Department's) Office of the Inspector General (OIG), the Department's Office of Professional Responsibility (OPR), the FBI Office of Professional Responsibility (FBI OPR), or the FBI Inspection Division (FBI-INSD) (collectively, Receiving Offices); to Congress as described in 5 U.S.C. 7211; to the Office of Special Counsel; or to an employee of any of the foregoing entities when designated by any officer, employee, office, or division named in this subsection for the purpose of receiving such disclosures, the disclosure will be a “protected disclosure” if the person making it reasonably believes that it evidences:
[Order No. 2926-2008, 73 FR 1495, Jan. 9, 2008, as amended by Order No. 5872-2024, 89 FR 7284, Feb. 2, 2024]