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For Your Safety 174
The FDA belongs to an interagency working group of the federal agencies that
have responsibility for different aspects of RF safety to ensure coordinated efforts
atthefederallevel.Thefollowingagenciesbelongtothisworkinggroup:
• National Institute for Occupational Safety and Health
• Environmental Protection Agency
• OccupationalSafetyandHealthAdministration(Administracióndelaseguridad
ysaludlaborales)
• Occupational Safety and Health Administration
• National Telecommunications and 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
CommunicationsCommission(FCC).AllphonesthataresoldintheUnitedStates
mustcomplywithFCCsafetyguidelinesthatlimitRFexposure.TheFCCrelieson
the FDA and other health agencies for safety questions about wireless phones.
TheFCCalsoregulatesthebasestationsthatthewirelessphonenetworksrely
upon. While these base stations operate at higher power than 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?
Theterm‘wirelessphone’refersheretohandheldwirelessphoneswithbuilt-in
antennas,oftencalled‘cell’,‘mobile’,or‘PCS’phones.Thesetypesofwirelessphones
canexposetheusertomeasurableradiofrequencyenergy(RF)becauseofthe
short distance between the phone and the user’s head. These RF exposures are
limitedbyFCCsafetyguidelinesthatweredevelopedwiththeadviceoftheFDA
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‘cordlessphones,’whichhaveabaseunitconnectedtothetelephonewiringin
a house, typically operate at far lower power levels, and thus produce RF exposures
farbelowtheFCCsafetylimits.
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