Sec. 1.1310  Radiofrequency radiation exposure limits.

    The criteria listed in table 1 shall be used to evaluate the 
environmental impact of human exposure to radiofrequency (RF) radiation 
as specified in Sec. 1.1307(b), except in the case of portable devices 
which shall be evaluated according to the provisions of Sec. 2.1093 of 
this chapter. Further information on evaluating compliance with these 
limits can be found in the FCC's OST/OET Bulletin Number 65, 
``Evaluating Compliance with FCC-Specified Guidelines for Human Exposure 
to Radiofrequency Radiation.''

    Note to Introductory Paragraph: These limits are generally based on 
recommended exposure guidelines published by the National Council on 
Radiation Protection and Measurements (NCRP) in ``Biological Effects and 
Exposure Criteria for Radiofrequency Electromagnetic Fields,'' NCRP 
Report No. 86, Sections 17.4.1, 17.4.1.1, 17.4.2 and 17.4.3. Copyright 
NCRP, 1986, Bethesda, Maryland 20814. In the frequency range from 100 
MHz to 1500 MHz, exposure limits for field strength and power density 
are also generally based on guidelines recommended by the American 
National Standards Institute (ANSI) in Section 4.1 of ``IEEE Standard 
for Safety Levels with Respect to Human Exposure to Radio Frequency 
Electromagnetic Fields, 3 kHz to 300 GHz,'' ANSI/IEEE C95.1-1992, 
Copyright 1992 by the Institute of Electrical and Electronics Engineers, 
Inc., New York, New York 10017.


                             Table 1--Limits for Maximum Permissible Exposure (
MPE)                             
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                                        Electric field     Magnetic field     P
ower density      Averaging time 
       Frequency range  (MHz)          strength  (V/m)    strength  (A/m)      
 (mW/cm\2\)         (minutes)    
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---------------------------------
                                (A) Limits for Occupational/Controlled Exposure
s                                
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---------------------------------
0.3-3.0.............................                614               1.63     
        *(100)                  6
3.0-30..............................             1842/f             4.89/f     
   *(900/f\2\)                  6
30-300..............................               61.4              0.163     
           1.0                  6
300-1500............................  .................  .................     
         f/300                  6
1500-100,000........................  .................  .................     
             5                  6
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---------------------------------
                             (B) Limits for General Population/Uncontrolled Exp
osure                            
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---------------------------------
0.3-1.34............................                614               1.63     
        *(100)                 30
1.34-30.............................              824/f             2.19/f     
   *(180/f\2\)                 30
30-300..............................               27.5              0.073     
           0.2                 30
300-1500............................  .................  .................     
        f/1500                 30
1500-100,000........................  .................  .................     
           1.0                 30
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---------------------------------
f = frequency in MHz                                                           
                                 
* = Plane-wave equivalent power density                                        
                                 
Note 1 to Table 1: Occupational/controlled limits apply in situations in which 
persons are exposed as a         
  consequence of their employment provided those persons are fully aware of the
 potential for exposure and can  
  exercise control over their exposure. Limits for occupational/controlled expo
sure also apply in situations    
  when an individual is transient through a location where occupational/control
led limits apply provided he or  
  she is made aware of the potential for exposure.                             
                                 
Note 2 to Table 1: General population/uncontrolled exposures apply in situation
s in which the general public may
  be exposed, or in which persons that are exposed as a consequence of their em
ployment may not be fully aware  
  of the potential for exposure or can not exercise control over their exposure
.                                

[ 61 FR 41016 , Aug. 7, 1996]