When a new Treasury Secretary comes into office, the Bureau of Engraving and Printing requests his official signature to begin producing new engraved plates used to print an updated series of currency in each denomination. Secretaries of the Treasury have had their signatures appear on U.S. currency since 1914.
Secretary Lew recently provided his signature for printing on new series 2013 U.S. currency. This signature will appear on newly printed bills, starting with the five-dollar note this fall.
If you are interested in learning more about the Bureau of Engraving and Printing and touring its facilities please visit bep.gov.
Anthony Reyes is the New Media Specialist at the U.S. Department of the Treasury.