12 U.S.C. § 247a

The Board of Governors of the Federal Reserve System shall keep a complete record of the action taken by the Board and by the Federal Open Market Committee upon all questions of policy relating to open-market operations and shall record therein the votes taken in connection with the determination of open-market policies and the reasons underlying the action of the Board and the Committee in each instance. The Board shall keep a similar record with respect to all questions of policy determined by the Board, and shall include in its annual report to the Congress a full account of the action so taken during the preceding year with respect to open-market policies and operations and with respect to the policies determined by it and shall include in such report a copy of the records required to be kept under the provisions of this section.