12 U.S.C. § 4201: Filing of confidential declarations by private persons

(a) In generalAny person may file a declaration of a violation giving rise to an action for civil penalties under section 1833a of this title affecting a depository institution insured by the Federal Deposit Insurance Corporation or any other agency or entity of the United States. (b) Place of filingA declaration under subsection (a) shall be filed with the Attorney General of the United States or with an agent designated by the Attorney General for receiving declarations under this section.