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Safety Guidelines
users. The CRADA will also include a broad assessment of additional research
needs in the context of the latest research developments around the world.
7. How can I find out how much radio frequency energy exposure I can get
by using my wireless phone?
All phones sold in the United States must comply with Federal
Communications Commission (FCC) guidelines that limit radio frequency
energy (RF) exposures. The FCC established these guidelines in consultation
with the FDA and the other federal health and safety agencies. The FCC limit
for RF exposure from wireless telephones is set at a Specific Absorption Rate
(SAR) of 1.6 watts per kilogram (1.6 W/kg). The FCC limit is consistent with
the safety standards developed by the Institute of Electrical and Electronic
Engineering (IEEE) and the National Council on Radiation Protection and
Measurement. The exposure limit takes into consideration the body’s ability
to remove heat from the tissues that absorb energy from the wireless phone
and is set well below levels known to have effects. Manufacturers of wireless
phones must report the RF exposure level for each model of phone to the
FCC. The FCC website (http://www.fcc.gov/oet/rfsafety) gives directions for
locating the FCC identification number on your phone so you can find your
phone’s RF exposure level in the online listing.
8. What has the FDA done to measure the radio frequency energy coming
from wireless phones?
The Institute of Electrical and Electronic Engineers (IEEE) is developing a
technical standard for measuring the radio frequency energy (RF) exposure
from wireless phones and other wireless handsets with the participation and
leadership of FDA scientists and engineers. The standard, ‘Recommended
Practice for Determining the Spatial- Peak Specific Absorption Rate (SAR) in
the Human Body Due to Wireless Communications Devices: Experimental
Techniques,’ sets forth the first consistent test methodology for measuring
the rate at which RF is deposited in the heads of wireless phone users. The
test method uses a tissuesimulating model of the human head. Standardized
SAR test methodology is expected to greatly improve the consistency of
measurements made at different laboratories on the same phone. SAR is the
measurement of the amount of energy absorbed in tissue, either by the