To designate the facility of the United States Postal Service located at 209 Main Street in Duncan, Arizona, as the "Sandra Day O'Connor Post Office".

This bill designates the U.S. Postal Service facility at 209 Main Street in Duncan, Arizona, as the "Sandra Day O'Connor Post Office." It updates all official U.S. government references - such as laws, maps, and documents - to use this new name for the location. The change applies only to the Duncan post office and does not alter any postal services or policies.