31
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
OnJuly10,2003,theU.S.FederalCommunications
Commission (FCC) Report and Order in WT
Docket01-309modifiedtheexceptionofwireless
phones under the Hearing Aid Compatibility Act of
1988(HACAct)torequiredigitalwirelessphones
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 guarantees. Results will vary
depending on the user’s hearing device and hearing
loss. If your hearing device happens to be vulnerable
to interference, you may not be able to use a rated
phone successfully. Trying out the phone with your