“ Support needed research int o possible biological effect s of RF of
t he t ype em it t ed by w ireless phones;
“ Design wireless phones in a way t hat m inim izes any RF exposure
t o t he user t hat is not necessary for device funct ion; and
“ Cooperat e in providing users of wireless phones wit h t he best
possible inform at ion on possible effect s of wireless phone use on
hum an healt h.
FDA belongs t o an int eragency working group of t he federal agencies t hat
have responsibilit y for different aspect s of RF safet y t o ensure coordinat ed
effort s at t he federal level. The follow ing agencies belong t o t his w orking
group:
“ Nat ional I nst it ut e for Occupat ional Safet y and Healt h
“ Environm ent al Prot ect ion Agency
“ Federal Com m unicat ions Com m ission
“ Occupat ional Safet y and Healt h Adm inist rat ion
“ Nat ional Telecom m unicat ions and I nform at ion Adm inist rat ion
The Nat ional I nst it ut es of Healt h part icipat es in som e int eragency working
group act ivit ies, as w ell.
FDA shares regulat ory responsibilit ies for wireless phones w it h t he Federal
Com m unicat ions Com m ission ( FCC) . All phones t hat are sold in t he Unit ed
St at es m ust com ply wit h FCC safet y guidelines t hat lim it RF exposure.
FCC relies on FDA and ot her healt h agencies for safet y quest ions about
w ireless phones.
FCC also regulat es t he base st at ions t hat t he w ireless phone net w orks
rely upon. While t hese base st at ions operat e at higher power t han do t he
w ireless phones t hem selves, t he RF exposures t hat people get from t hese
base st at ions are t ypically t housands of t im es low er t han t hose t hey can
get from w ireless phones. Base st at ions are t hus not t he prim ary subj ect
of t he safet y quest ions discussed in t his docum ent .
W h a t a r e t h e r e su lt s of t h e r e se a r ch don e a lr e a dy?
The research done t hus far has produced conflict ing result s, and m any
st udies have suffered from flaws in t heir research m et hods. Anim al
experim ent s invest igat ing t he effect s of radio frequency energy ( RF)
exposures charact erist ic of w ireless phones have yielded conflict ing
result s t hat oft en cannot be repeat ed in ot her laborat ories. A few anim al
st udies, however, have suggest ed t hat low levels of RF could accelerat e
t he developm ent of cancer in laborat ory anim als. However, m any of t he
st udies t hat show ed increased t um or developm ent used anim als t hat had
been genet ically engineered or t reat ed w it h cancer- causing chem icals so
as t o be pre- disposed t o develop cancer in absence of RF exposure. Ot her
st udies exposed t he anim als t o RF for up t o 22 hours per day. These
condit ions are not sim ilar t o t he condit ions under w hich people use
w ireless phones, so w e don't know w it h cert aint y w hat t he result s of such
st udies m ean for hum an healt h.
Three large epidem iology st udies have been published since Decem ber
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