SAFETY AND WARRANTY8. What has FDA done to measure the radiofrequency energycoming from wireless phones ?The Institute of Electrical and Electronic Engineers (IEEE) is developing atechnical standard for measuring the radiofrequency energy (RF)exposure from wireless phones and other wireless handsets with theparticipation and leadership of FDA scientists and engineers.The standard, “Recommended Practice for Determining the Spatial-PeakSpecific Absorption Rate (SAR) in the Human Body Due to WirelessCommunications Devices: Experimental Techniques,” sets forth thefirst consistent test methodology for measuring the rate at which RF isdeposited in the heads of wireless phone users. The test method usesa tissue-simulating model of the human head. Standardized SAR testmethodology is expected to greatly improve the consistency ofmeasurements made at different laboratories on the same phone. SAR isthe measurement of the amount of energy absorbed in tissue, either bythe whole body or a small part of the body. It is measured in watts/kg (ormilliwatts/g) of matter. This measurement is used to determine whethera wireless phone complies with safety guidelines.9. What steps can I take to reduce my exposure to radiofrequencyenergy from my wireless phone?If there is a risk from these products—and at this point we do not knowthat there is—it is probably very small. But if you are concerned aboutavoiding even potential risks, you can take a few simple steps tominimize your exposure to radiofrequency energy (RF). Since time is akey factor in how much exposure a person receives, reducing the amountof time spent using a wireless phone will reduce RF exposure.• If you must conduct extended conversations by wireless phone everyday, you could place more distance between your body and the sourceof the RF, since the exposure level drops off dramatically with distance.For example, you could use a headset and carry the wireless phoneaway from your body or use a wireless phone connected to a remoteantenna.Again, the scientific data do not demonstrate that wireless phones areharmful. But if you are concerned about the RF exposure from theseproducts, you can use measures like those described above to reduceyour RF exposure from wireless phone use.150FDA CONSUMER UPDATE