Health and Safety Information 160FDA belongs to an interagency working group of the federalagencies that have responsibility for different aspects of RFsafety to ensure coordinated efforts at the federal level. Thefollowing 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 AdministrationThe National Institutes of Health participates in some interagencyworking group activities, as well.FDA shares regulatory responsibilities for wireless phones withthe Federal Communications Commission (FCC). All phones thatare sold in the United States must comply with FCC safetyguidelines that limit RF exposure. FCC relies on FDA and otherhealth agencies for safety questions about wireless phones.FCC also regulates the base stations that the wireless phonenetworks rely upon. While these base stations operate at higherpower than do the wireless phones themselves, the RFexposures that people get from these base stations are typicallythousands of times lower than those they can get from wirelessphones.Base stations are thus not the primary subject of the safetyquestions discussed in this document.What are the results of the research done already?The research done thus far has produced conflicting results, andmany studies have suffered from flaws in their researchmethods. Animal experiments investigating the effects of radiofrequency energy (RF) exposures characteristic of wirelessphones have yielded conflicting results that often cannot berepeated in other laboratories. A few animal studies, however,have suggested that low levels of RF could accelerate thedevelopment of cancer in laboratory animals.However, many of the studies that showed increased tumordevelopment used animals that had been genetically engineeredor treated with cancer-causing chemicals so as to be pre-disposed to develop cancer in absence of RF exposure. Otherstudies exposed the animals to RF for up to 22 hours per day.These conditions are not similar to the conditions under whichpeople use wireless phones, so we don't know with certaintywhat the results of such studies mean for human health.Three large epidemiology studies have been published sinceDecember 2000. Between them, the studies investigated anypossible association between the use of wireless phones andprimary 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 harmfulhealth effects from wireless phones RF exposures.i897 Vegas.book Page 160 Monday, July 19, 2010 12:26 PM