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104 Copyright © Nokia 2004
FDA belongs to an interagency working group of the federal agencies that have
responsibility for different aspects of RF safety to ensure coordinated efforts at the
federal level. The following agencies belong to this working group:
• National Institute for Occupational Safety and Health
• Environmental Protection Agency
• Federal Communications Commission
• Occupational Safety and Health Administration
• National Telecommunications and Information Administration
The National Institutes of Health participates in some interagency working group
activities, as well.
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. FCC relies on FDA
and other health agencies for safety questions about wireless phones. 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 hand-held 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
Federal Communications Commission safety guidelines that were developed with
the advice of 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 lower power levels, and thus
produce RF exposures far below the FCC safety limits.