Blasting Areas; Potentially Explosive Atmospheres - Motorola V3620 Manual

Hospitals or health care facilities may be using equipment
that could be sensitive to external RF energy.
Vehicles
RF signals may affect improperly installed or inadequately
shielded electronic systems in motor vehicles. Check with the
manufacturer or its representative regarding your vehicle.
You should also consult the manufacturer of any equipment
that has been added to your vehicle.
Posted Facilities
Turn your phone off in any facility where posted notices so
require.
Aircraft
FCC regulations prohibit using your phone while in the air.
Switch off your phone before boarding an aircraft.

Blasting Areas

To avoid interfering with blasting operations, turn your
phone off when in a "blasting area" or in areas posted:
"Turn off two-way radio." Obey all signs and instructions.

Potentially Explosive Atmospheres

Turn your phone off when in any area with a potentially
explosive atmosphere and obey all signs and instructions.
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