List of executive air transports of U.S. states
Some U.S. states have aircraft that are at the disposal of the governor or other state elected officials to easily travel around the state or make official trips out of state such as Federal meetings in Washington, DC. Air travel may also be opted for when ground transportation may pose security concerns or would not fit within a busy schedule with multiple stops across different parts of a state. Like air transports of heads of state and government of sovereign states, these usually consist of private executive aircraft or police and other state agency aircraft that can be also be used for passenger transport.
Source: Wikipedia — List of executive air transports of U.S. states (CC BY-SA 4.0)