In the United States, there is a fundamental constitutional right to travel from state to state, as established by numerous Supreme Court decisions. However, this is distinct from the "right" to operate a motor vehicle on public roads. Courts have consistently ruled that driving is a privilege, not a right, and that states have the authority to regulate road safety by requiring a valid driver's license, vehicle registration, and insurance. While a citizen has the right to travel via public transportation (buses, trains, planes) or by walking or cycling without a license, the use of a private automobile as a driver is subject to state licensing laws. In 2026, with the full implementation of the REAL ID Act, a valid license or an alternative form of acceptable ID (like a passport) is even more critical for traveling via commercial aircraft. While some "sovereign citizen" groups argue that the right to travel includes a right to drive unlicensed, these legal theories are not recognized by any state or federal court and typically result in arrests and fines.