12 C.F.R. § 810.0
The Federal Financing Bank is authorized under the Federal Financing Bank Act of 1973, to issue publicly, with the approval of the Secretary of the Treasury, obligations having such maturities and bearing such rate or rates of interest as may be determined by the Bank. Pursuant to this authority, Federal Financing Bank bills, referred to herein as "FFB bills," are offered for sale from time to time and tenders invited therefor, through the Federal Reserve Banks. The FFB bills so offered, the tenders made, and all subsequent transactions therein are subject to the terms and conditions of the public notice offering the bills for sale, this circular, and to the extent not inconsistent with such notice and circular, to Department of the Treasury Circular No. 418, current revision, the regulations governing United States Treasury bills, and all other regulations governing United States securities.
12 C.F.R. § 810.0