12 U.S.C. § 1434: Depositaries of public money; financial agents

When designated for that purpose by the Secretary of the Treasury, each Federal Home Loan Bank shall be a depositary of public money, except receipts from customs, under such regulations as may be prescribed by said Secretary; and it may also be employed as a financial agent of the Government; and it shall perform all such reasonable duties as depositary of public money and financial agent of the Government as may be required of it.