Bloomington has one of the largest volunteer fire departments in the country with 120 firefighters. They provide fire protection that has resulted in a Class 2 fire rating. The department operates six fire stations and utilizes the latest in fire fighting equipment. The department has a total of 30 fire fighting vehicles including pumpers, hook and ladder and specialty units (one vehicle compact enough to navigate the Mall of America's parking ramps), all of which are equipped with Opticom System equipment, which automatically switches traffic signals to expedite emergency runs. The average response time is four minutes.