But, it's not to say that the FDNY has not been to different parts of New Jersey, they have been on scene for incidents involving bridges, tunnels, and airports. For example, if a fire occurs on a bridge or in a tunnel connecting New Jersey, the Port Authority of New York and the FDNY are notified to respond to the scene. So, in conclusion we could still technically add FDNY units considering Jersey City is a part of New Jersey..