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Con su m e r I n for m a t ion on W ir e le ss Ph on e s

The U.S. Food and Drug Adm inist ration ( FDA) has published a series of

Quest ions and Answers for consum ers relat ing t o radio frequency ( RF)

ex posure from wireless phones. The FDA publicat ion includes t he

following inform at ion:

W h a t k in ds of ph on e s a r e t h e su bj ect of t h is u pda t e ?

The t erm wireless phone refers here t o hand- held wireless phones wit h

built - in ant ennas, oft en called " cell," " m obile," or " PCS" phones. These

t y pes of wireless phones can ex pose t he user t o m easurable radio

frequency energy ( RF) because of t he short dist ance bet ween t he phone

and t he user's head. These RF exposures are lim it ed by Federal

Com m unicat ions Com m ission safet y guidelines t hat were dev eloped wit h

t he advice of FDA and ot her federal healt h and safet y agencies. When t he

phone is locat ed at great er dist ances from t he user, t he exposure t o RF is

drast ically lower because a person's RF ex posure decreases rapidly wit h

increasing dist ance from t he source. The so- called " cordless phones,"

which have a base unit connect ed t o t he t elephone wiring in a house,

t y pically operat e at far lower power levels, and t hus produce RF

ex posures well wit hin t he FCC's com pliance lim it s.

D o w ir e le ss ph on e s pose a h e a lt h h aza r d?

The available scient ific evidence does not show t hat any healt h problem s

are associat ed wit h using wireless phones. There is no proof, howev er,

t hat wireless phones are absolut ely safe. Wireless phones em it low levels

of radio frequency energy ( RF) in t he m icrowave range w hile being used.

They also em it v ery low lev els of RF when in t he st and- by m ode. Whereas

high levels of RF can produce healt h effect s ( by heat ing t issue) , exposure

t o low level RF t hat does not produce heating effect s causes no known

adverse healt h effect s. Many st udies of low level RF exposures have not

found any biological effect s. Som e st udies have suggested t hat som e

biological effect s m ay occur, but such findings have not been confirm ed

by addit ional research. I n som e cases, ot her researchers hav e had

difficult y in reproducing t hose st udies, or in det erm ining t he reasons for

inconsist ent result s.

W h a t is FD A's r ole con ce r n in g t h e sa fet y of w ir e le ss ph on e s?

Under t he law, FDA does not review t he safet y of radiat ion- em it t ing

consum er product s such as wireless phones before t hey can be sold, as it

does wit h new drugs or m edical devices. However, t he agency has

aut horit y t o t ake act ion if wireless phones are shown t o em it radio

frequency energy ( RF) at a level t hat is hazardous t o t he user. I n such a

case, FDA could require t he m anufact urers of wireless phones t o not ify

users of t he healt h hazard and t o repair, replace or recall t he phones so

t hat t he hazard no longer exist s.

Alt hough t he exist ing scient ific dat a do not j ust ify FDA regulat ory act ions,

FDA has urged t he wireless phone indust ry t o t ake a num ber of st eps,

including t he following: