What is vice presidential flag?

The vice presidential flag is the official flag of the Vice President of the United States. The flag features a blue field with the Seal of the Vice President in the center, surrounded by 13 white stars on a white circle. The design was adopted in 1975 under President Gerald Ford and replaces an earlier version that was used during the 19th century. The flag is usually flown at the Vice President's official residence, office, and when the Vice President is traveling on official business. The flag is also used to identify the Vice President's motorcade and aircraft.