31 C.F.R. § 309.13 Functions of Federal Reserve Banks.
Title 31 - Money and Finance: Treasury
Federal Reserve Banks and Branches, as fiscal agents of the United States, are authorized to perform all such acts as may be necessary to carry out the provisions of this circular and of any public notice or notices issued in connection with any offering of Treasury bills.
Title 31: Money and Finance: Treasury
PART 309—ISSUE AND SALE OF TREASURY BILLS
§ 309.13 Functions of Federal Reserve Banks.