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typical or maximum SAR for that phone. Additional information on Specific Absorption
Rates (SAR) can be found on the Cellular Telecommunications Industry Association
(CTIA) website at http://www.ctia.org/ In the United States and Canada, the SAR limit
for mobile phones used by the public is 1.6 watts/kg (W/kg) averaged over one gram
of tissue. The standard incorporates a substantial margin of safety to give additional
protection for the public and to account for any variations in measurements.
FCC hearing-aid compatibility (HAC) regulations for wireless devices
On July 10, 2003, the U.S. Federal Communications Commission (FCC) Report and Order
in WT Docket 01- 309 modified the exception of wireless phones under the Hearing Aid
Compatibility Act of 1988 (HAC Act) to require digital wireless phones be compatible
with hearing-aids. The intent of the HAC Act is to ensure reasonable access to
telecommunications services for persons with hearing disabilities. While some wireless
phones are used near some hearing devices (hearing aids and cochlear implants), users
may detect a buzzing, humming, or whining noise. Some hearing devices are more
immune than others to this interference noise, and phones also vary in the amount of
interference they generate. The wireless telephone industry has developed a rating
system for wireless phones, to assist hearing device users to find phones that may be
compatible with their hearing devices. Not all phones have been rated. Phones that are
rated have the rating on their box or a label located on the box. The ratings are not