On June 18, 2015, the Board of Governors of the Federal Reserve System adopted a final rule amending Regulation D (Reserve Requirements of Depository Institutions), changing the calculation of interest payments on certain balances maintained by eligible institutions at Federal Reserve Banks. In contrast to the previous rule, which based interest payments on the average rate over the two-week reserve maintenance period, the final rule bases interest payments on a daily rate. The amendment is intended to enhance the effectiveness of changes in such rates of interest in moving the Federal funds rate into the target range established by the Federal Open Market Committee, especially when changes in those rates do not coincide with the beginning of a maintenance period. The amendments to Regulation D will be effective July 23, 2015.
The text of the amended Regulation D is available at: http://www.federalreserve.gov/newsevents/press/bcreg/bcreg20150618a1.pdf.