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Note: Always turn off the phone in healthcare facilities, and request permission before
using the phone near medical equipment.
Turning Off Your Phone Before Flying
Turn off your phone before boarding any aircraft. To prevent possible interference with
aircraft systems, the U.S. Federal Aviation Administration (FAA) regulations require you
to have permission from a crew member to use your phone while the plane is on the
ground. To prevent any risk of interference, FCC regulations prohibit using your phone
while the plane is in the air.
Turning Off Your Phone in Dangerous Areas
To avoid interfering with blasting operations, turn your phone off when in a blasting
area or in other areas with signs indicating two-way radios should be turned off.
Construction crews often use remote-control RF devices to set off explosives.
Turn your phone off when you're in any area that has a potentially explosive
atmosphere. Although it's rare, your phone and accessories could generate sparks.
Sparks can cause an explosion or fire, resulting in bodily injury or even death. These
areas are often, but not always, clearly marked. They include:
+ Fueling areas such as gas stations.
+ Below deck on boats.
+ Fuel or chemical transfer or storage facilities.
+ Areas where the air contains chemicals or particles such as grain, dust, or metal powders.
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