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Appendix A
Maintaining
Pocket PC Phone User Manual166
Appendix A
Maintaining
Pocket PC Phone User Manual
167
This approach ensures that when FCC takes regulatory action, it will have a sound, defensible
scientic basis.
FDA scientic staff reviewed the methodology used by FCC to measure cell phone RF, and agreed
it is an acceptable approach, given our current understanding of the risks presented by cellular
phone RF emissions. RF emissions from cellular phones have not been shown to present a risk
of injury to the user when the measured SAR is less than the safety limits set by FCC (an SAR
of 1.6 w/kg). Even in a case where the maximum measurement uncertainty permitted by current
measurement standards was added to the maximum permissible SAR, the resulting SAR value
would be well below any level known to produce an acute effect. Consequently, FCC’s approach
with measurement uncertainty will not result in consumers being exposed to any known risk from
the RF emitted by cellular telephones.
FDA will continue to monitor studies and literature reports concerning acute effects of cell phone
RF, and concerning chronic effects of long-term exposure to cellular telephone RF (that is, the
risks from using a cell phone for many years). If new information leads FDA to believe that a
change to FCC’s measurement policy may be appropriate, FDA will contact FCC and both
agencies will work together to develop a mutually-acceptable approach