San Mateo County, California has done away with jurisdictional boundries for fire and medical response. The closest units go. ICS (now called NIMS--National Incident Management System) is practiced on every call. Even a simple medical aid call, the engine goes "on scene" on the radio and initiates the "Main Street Command, Captain Jones is the Incident Commander". Police have caught on to this too, and like it, especially at a fire or rescue call. BTW, NIMS is required for Federal Disaster reimbursement. FEMA's web site even has on-line courses for all levels. If you are interested in listening to San Mateo County's fire radio traffic, point your browser to www.firedispatch.com.