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coordinated efforts at the federal level.
The following agencies belong to this
working group:
National Institute for Occupational
d
Safety and Health
Environmental Protection Agency
d
Occupational Safety and Health
d
Administration (Administración de la
seguridad y salud laborales)
Occupational Safety and Health
d
Administration
National Telecommunications and
d
Information Administration
The National Institutes of Health
participates in some interagency working
group activities, as well.
The FDA shares regulatory responsibilities
for wireless phones with the Federal
Communications Commission (FCC). All
phones that are sold in the United States
must comply with FCC safety guidelines
that limit RF exposure. The FCC relies on
the FDA and other health agencies for
safety questions about wireless phones.
The FCC also regulates the base stations
that the wireless phone networks rely
upon. While these base stations operate
at higher power than do the wireless
phones themselves, the RF exposures
that people get from these base stations
are typically thousands of times lower
than those they can get from wireless
phones. Base stations are thus not the
subject of the safety questions discussed
in this document.
3. What kinds of phones are the subject of
this update?
The term 'wireless phone' refers here
to handheld wireless phones with
built-in antennas, often called 'cell',
'mobile', or 'PCS' phones. These types of
wireless phones can expose the user to
measurable radiofrequency energy (RF)
because of the short distance between
the phone and the user's head. These
RF exposures are limited by FCC safety
guidelines that were developed with
the advice of the FDA and other federal
health and safety agencies. When the
phone is located at greater distances
from the user, the exposure to RF is
drastically lower because a person's
RF exposure decreases rapidly with
increasing distance from the source. The
so-called 'cordless phones', which have
a base unit connected to the telephone
wiring in a house, typically operate at far
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