In the past, ferries were equipped for vehicle transport, and operators charged $3 per automobile. A vehicle ban was approved in 1992, after the Whitehall Terminal was destroyed and subsequently rebuilt without vehicle loading areas. Although the temporary terminals included car loading areas, car boarding was discontinued after the September 11 attacks. There was a plan to reinstate car boarding because of rising tolls on the Verrazano Bridge, but that was seen as infeasible due to the amount of effort needed to screen every car.

Answer this question based on the passage: when did they stop allowing cars on the staten island ferry? OK. Let's think. My stream of consciousness:
This is the relevant information: A vehicle ban was approved in 1992, after the Whitehall Terminal was destroyed and subsequently rebuilt without vehicle loading areas. The answer is 1992.