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113
Safety Guidelines
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

OccupationalSafetyandHealthAdministration

NationalTelecommunicationsandInformationAdministration
TheNationalInstitutesofHealthparticipatesinsomeinteragencyworkinggroup
activities,aswell.
The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.TheFCCreliesontheFDA
andotherhealthagenciesforsafetyquestionsaboutwirelessphones.
The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handheld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FCCsafetyguidelinesthatweredevelopedwiththeadviceofthe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
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