Additional safety information
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6. What is FDA doing to find out more about the possible 
health effects of wireless phone RF?
FDA is working with the U.S. National Toxicology Program and with groups of 
investigators around the world to ensure that high priority animal studies are 
conducted to address important questions about the effects of exposure to 
radiofrequency energy (RF).
FDA has been a leading participant in the World Health Organization 
International Electromagnetic Fields (EMF) Project since its inception in 
1996. An influential result of this work has been the development of a 
detailed agenda of research needs that has driven the establishment of new 
research programs around the world. The Project has also helped develop a 
series of public information documents on EMF issues.
FDA and the Cellular Telecommunications & Internet Association (CTIA) have 
a formal Cooperative Research and Development Agreement (CRADA) to do 
research on wireless phone safety. FDA provides the scientific oversight, 
obtaining input from experts in government, industry, and academic 
organizations. CTIA-funded research is conducted through contracts to 
independent investigators. The initial research will include both laboratory 
studies and studies of wireless phone 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 radiofrequency 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 radiofrequency 
energy (RF) exposures. FCC established these guidelines in consultation with 
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 (www.fcc.gov/oet/rfsafety) gives 
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