PUBLIC NOTICE
                                        Federal Communications Commission
                                                         1919 M St., N.W.
                                                   Washington, D.C. 20554
                                                                              
                                                                              
      December 30, 1997


           OFFICE OF ENGINEERING AND TECHNOLOGY ISSUES BULLETIN
         SUPPLEMENT TO PROVIDE GUIDANCE IN EVALUATING MOBILE AND 
         PORTABLE DEVICES FOR COMPLIANCE WITH EXPOSURE GUIDELINES 
                 FOR RADIOFREQUENCY ELECTROMAGNETIC FIELDS

 On August 25, 1997, the Commission's Office of Engineering and Technology (OET)
issued a revised version of OET Bulletin 65,  "Evaluating Compliance with FCC Guidelines
for Human Exposure to Radiofrequency Electromagnetic Fields."  This bulletin, provides
assistance in determining whether FCC-regulated transmitting facilities, operations and devices
comply with limits adopted by the Commission in 1996 for human exposure to radiofrequency
(RF) electromagnetic fields.   One of the areas discussed in Bulletin 65 is compliance with the
limits adopted by the Commission for safe exposure to RF emissions from mobile and portable
devices, such as non-fixed wireless transmitters and hand-held cellular telephones. 

 A supplement has now been developed to provide further guidance for use by
applicants for FCC equipment authorization in evaluating these devices for compliance with
RF safety limits.  This supplement, Supplement C, is entitled, "Additional Information for
Evaluating Compliance of Mobile and Portable Devices with FCC Limits for Human Exposure
to Radiofrequency Emissions."  This is the third supplement to Bulletin 65.  Supplement A,
issued in August, provides additional compliance information designed specifically for radio
and television broadcast stations.  Supplement B, issued in November, provides similar
information for amateur radio station operations.  

 Further information concerning Supplement C can be obtained by contacting Kwok
Chan of OET's laboratory in Columbia, MD, (301) 725-1585, ext 217.  OET Bulletin 65,
Supplement A, Supplement B and the new Supplement C can all be viewed and downloaded
from the FCC's OET World Wide Web Site:  www.fcc.gov/oet/.   Copies can also be
purchased from the Commission's duplicating/research contractor:  International Transcription
Service, Inc., 1231 20th Street, N.W., Washington, D.C. 20036;  Telephone: (202) 857-
3800, FAX: (202) 857-3805.  

                                  - FCC -