Garmin Astro Owner's Manual page 72

Important Safety and Product Information
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 radio OFF
in any facility where posted notices so
require.
Commercial Aircraft–Many
commercial airlines prohibit the use of
FRS/GMRS radios on board. Switch
OFF your radio before boarding an
aircraft or check the airline rules.
Blasting Areas–To avoid interfering
with blasting operations, turn your
radio 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 radio OFF and do not
remove your battery when you are in
any area with a potentially explosive
atmosphere. Obey all signs and

instructions. Sparks from your battery
in such areas could cause an explosion
or fire resulting in bodily injury or even
death.
Areas with a potentially explosive
atmosphere are often, but not always
clearly marked. They include fueling
areas such as gasoline stations, below
deck on boats, fuel or chemical transfer
or storage facilities; vehicles using
liquefied petroleum gas (such as
propane or butane); areas where the air
contains chemicals or particles, such as
grain, dust, or metal powders; and any
other area where you would normally
be advised to turn off your vehicle
engine.
Astro and DC 40 Owner's Manual