Potentially explosive
environments
Switch off your device when in any area with a
potentially explosive atmosphere, and obey all signs
and instructions. Potentially explosive atmospheres
include areas where you would normally be advised to
turn off your vehicle engine. Sparks in such areas could
cause an explosion or fire resulting in bodily injury or
even death. Switch off the device at refueling points
such as near gas pumps at service stations. Observe
restrictions on the use of radio equipment in fuel
depots, storage, and distribution areas; chemical
plants; or where blasting operations are in progress.
Areas with a potentially explosive atmosphere are
often, but not always, clearly marked. They include
below deck on boats, chemical transfer or storage
facilities, vehicles using liquefied petroleum gas (such
as propane or butane), and areas where the air contains
chemicals or particles such as grain, dust, or metal
powders.