Tanker trucks, which are sometimes called mobile water supply apparatus, are used to transport water and firefighters to many emergency scenes, especially to emergency scenes where water is not readily available. Unfortunately, the fatality rates of these lesser-used firefighting vehicles is much higher than the accident rate of other firefighting vehicles.
According to some industry experts, part of the problem may be laws regarding drivers.
Most state laws allow emergency vehicle drivers important exemptions. Drivers of these vehicles are allowed to speed, drive against the flow of traffic, request right of way, and to drive around traffic control items. All these exemptions permit driver to help people in an emergency, but these exemptions are not meant to permit reckless driving. Drivers of mobile water supply apparatus are still expected to be cautious of the public.