12 CFR § 270.4 - Transactions in obligations.
(a) Each Federal Reserve bank shall engage in open market operations under section 14 of the Federal Reserve Act only in accordance with this part and with the authorizations and directives issued by the Committee from time to time, and no Reserve bank shall decline to engage in open market operations as directed by the Committee.
(b) Transactions for the System Open Market Account shall be executed by a Federal Reserve bank selected by the Committee. The participations of the several Federal Reserve banks in such account and in the profits and losses on transactions for the account shall be allocated in accordance with principles determined by the Committee from time to time.
(c) In accordance with such limitations, terms, and conditions as are prescribed by law and in authorizations and directives issued by the Committee, the Reserve bank selected by the Committee is authorized and directed -
(2) To buy and sell banker's acceptances in the open market for its own account;
(3) To buy Government securities, U.S. agency securities, and banker's acceptances of the kinds described above, under agreements for repurchase of such obligations, in the open market for its own account; and
(4) To buy and sell foreign currencies in the form of cable transfers in the open market for the System Open Market Account and to maintain for such account reciprocal currency arrangements with foreign banks among those designated by the Board of Governors of the Federal Reserve System under § 214.5 of this chapter (Regulation N).
(d) The Federal Reserve banks are authorized and directed to engage in such other operations as the Committee may from time to time determine to be reasonably necessary to the effective conduct of open market operations and the effectuation of open market policies.