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Some groups sponsored by other national governments
have advised that children be discouraged from using
wireless phones at all. For example, the government in
the United Kingdom distributed leaflets containing such
a recommendation in December 2000.They noted that
no evidence exists that using a wireless phone causes
brain tumors or other ill effects.Their recommendation to
limit wireless phone use by children was strictly precau-
tionary; it was not based on scientific evidence that any
health hazard exists.
11.What about wireless phone interference with med-
ical equipment?
Radiofrequency energy (RF) from wireless phones can
interact with some electronic devices. For this reason,
FDA helped develop a detailed test method to measure
electromagnetic interference (EMI) of implanted cardiac
pacemakers and defibrillators from wireless telephones.
This test method is now part of a standard sponsored by
the Association for the Advancement of Medical instru-
mentation (AAMI). The final draft, a joint effort by FDA,
medical device manufacturers, and many other groups,
was completed in late 2000. This standard will allow
manufacturers to ensure that cardiac pacemakers and
defibrillators are safe from wireless phone EMI.
FDA has tested hearing aids for interference from hand-
held wireless phones and helped develop a voluntary
standard sponsored by the Institute of Electrical and
Electronic Engineers (IEEE). This standard specifies
test methods and performance requirements for hearing
aids and wireless phones so that no interference occurs
when a person uses a “compatible” phone and a “com-
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