48 C.F.R. § 32.303
(b) The guarantee shall be for less than 100 percent of the loan unless the agency determines that—
(f) Under Section 302(c) of Executive Order 10480, August 14, 1953 (3 CFR 1949-53), as amended, all actions and operations of Federal Reserve Banks, as fiscal agents, are subject to the supervision of the Federal Reserve Board. The Federal Reserve Board is authorized to prescribe the following, after consultation with the heads of guaranteeing agencies: