What is the significance of the series date on our currency? Doesn the date change each year as it does with coins?
A new series will result from a change in the Secretary of the Treasury, the Treasurer of the United States, and/or a change to the note’s appearance such as a new currency design. After the Secretary of the Treasury changes, a new series year is adopted. When the Treasurer of the United States changes, a suffix letter is added to the series year (e.g. 1999A). Additional changes of the Treasurer, whereby the Secretary of the Treasury remains the same results in subsequent letter changes to the current series year (e.g. 1999B, 1999C, etc.). On newly designed notes, the series year may appear on the right or the left of the note’s face side. The year in which the currency is actually printed is not indicated on the note. Beginning with Series 1996 Federal Reserve notes, there are two prefix letters to the serial number. The first prefix letter indicates the series year. The second prefix letter indicates the issuing Reserve Bank. .
