Samsung SGH-A847ZAAATT User Manual
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Health and Safety Information 152
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 primary subject of the safety 
questions discussed in this document.
What are the results of the research done already?
The research done thus far has produced conflicting results, and 
many studies have suffered from flaws in their research 
methods. Animal experiments investigating the effects of radio 
frequency energy (RF) exposures characteristic of wireless 
phones have yielded conflicting results that often cannot be 
repeated in other laboratories. A few animal studies, however, 
have suggested that low levels of RF could accelerate the 
development of cancer in laboratory animals. However, many of 
the studies that showed increased tumor development used 
animals that had been genetically engineered or treated with 
cancer-causing chemicals so as to be pre-disposed to develop 
cancer in absence of RF exposure. Other studies exposed the 
animals to RF for up to 22 hours per day. These conditions are 
not similar to the conditions under which people use wireless 
phones, so we don't know with certainty what the results of such 
studies mean for human health.
Three large epidemiology studies have been published since 
December 2000. Between them, the studies investigated any 
possible association between the use of wireless phones and 
primary brain cancer, glioma, meningioma, or acoustic neuroma, 
tumors of the brain or salivary gland, leukemia, or other cancers. 
None of the studies demonstrated the existence of any harmful 
health effects from wireless phones RF exposures. 
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