User's Manual

157U.S. FDA
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to the user that is not necessary
for device function; and
• Cooperate in providing mobile
phone users with the best possible
information on what is known
about possible effects of mobile
phone use on human health.
• At the same time, FDA belongs to
an interagency working group of
the federal agencies that have re-
sponsibility for different aspects
of mobile phone safety to ensure
a coordinated effort at the federal
level. These agencies are:
• National Institute for Occupation-
al Safety and Health
• Environmental Protection Agency
• Federal Communications Com-
mission
• Occupational Health and Safety
Administration
• National Telecommunications and
Information Administration
The National Institutes of Health also
participates in this group.
In the absence of conclusive information
about any possible risk, what can con-
cerned individuals do?
If there is a risk from these products –
and at this point we do not know that
there is – it is probably very small. But
if people are concerned about avoid-
ing even potential risks, there are sim-
ple steps they can take to do so. For
example, time is a key factor in how
much exposure a person receives.
Those persons who spend long peri-
ods of time on their hand-held mobile
phones could consider holding
lengthy conversations on convention-
al phones and reserving the hand-
held models for shorter conversations
or for situations when other types of
phones are not available.
People who must conduct extended
conversations in their cars every day
could switch to a type of mobile
phone that places more distance be-
tween their bodies and the source of
the RF, since the exposure level drops
off dramatically with distance. For ex-
ample, they could switch to:
• a mobile phone in which the an-
tenna is located outside the vehi-
cle,
• a hand-held phone with a built-in
antenna connected to a different
antenna mounted on the outside
of the car or built into a separate
package, or
• a headset with a remote antenna
to a mobile phone carried at the
waist.