Goto Section: 11.1 | 11.12 | Table of Contents

FCC 11.11
Revised as of
Goto Year:1996 | 1998
Sec. 11.11  The Emergency Alert System (EAS).

    (a) The EAS is composed of broadcast networks; cable networks and 
program suppliers; AM, FM and TV broadcast stations; Low Power TV (LPTV) 
stations; cable systems; and other entities and industries operating on 
an organized basis during emergencies at the National, State, or local 
levels. It requires that at a minimum all participants use a common EAS 
protocol, as defined in Sec. 11.31, to send and receive emergency alerts 
in accordance with

[[Page 585]]

the effective dates in the following tables:

                                          Timetable--Broadcast Stations        
                                 
-------------------------------------------------------------------------------
---------------------------------
           Requirement               Until 7/1/95           7/1/95             
 1/1/97              1/1/98      
-------------------------------------------------------------------------------
---------------------------------
Two-tone/encoder timing.........  20-25 seconds.....  8-25 seconds......  8-25 
seconds......  8-25 seconds.\1\  
Two-tone decode timing..........  8-16 seconds        All decoders at 3-  3-4 s
econds.......  Two-tone decoder  
                                   required.           4 seconds.              
                no longer used.  
                                  3-4 seconds                                  
                                 
                                   optional.                                   
                                 
Digital decoder and encoder.....  Use is optional...  Use is optional...  Use i
s required...  Use is required.  
-------------------------------------------------------------------------------
---------------------------------


                              Cable Systems                             
------------------------------------------------------------------------
           Requirement               Until 7/1/97         7/1/97 \2\    
------------------------------------------------------------------------
Two-tone signal from storage      Use is optional, 8- Use is required, 8-
 device.\1\.                       25 seconds.         25 seconds.      
Digital decoder and encoder.....  Use is optional...  Use is            
                                                       required.\2\     
------------------------------------------------------------------------
\1\ Two-tone signal used only to provide audio alert to audience before 
  EAS emergency messages and required monthly test.                     
\2\ On this date, subject cable systems shall provide: (1) a video      
  message on all channels or other alerting techniques to hearing       
  impaired and deaf subscribers, (2) an audio message and video         
  interruption on all channels, and (3) a video message on at least one 
  channel to all subscribers.                                           
Note: Class D FM and low power TV stations are not required to have two-
  tone or digital encoders. LPTV stations that operate as television    
  broadcast translator stations are exempt from the requirement to have 
  EAS equipment. FM translator stations are exempt from the requirement 
  to have EAS equipment.                                                


                                EAS Timetable and Requirements Broadcast Statio
ns                               
-------------------------------------------------------------------------------
---------------------------------
                                                                               
   FM Class                      
                       Requirement                             AM         FM   
      D          TV      LPTV \1\
-------------------------------------------------------------------------------
---------------------------------
Two-tone decoder (until 1/1/98)..........................         Y          Y 
         Y          Y          Y 
Two-tone encoder.........................................         Y          Y 
         N          Y          N 
Digital decoder (1/1/97).................................         Y          Y 
         Y          Y          Y 
Digital encoder (1/1/97).................................         Y          Y 
         N          Y          N 
Audio message (1/1/97)...................................                    Y 
         Y          Y         YY 
Video message (1/1/97)...................................                      
                              YY 
-------------------------------------------------------------------------------
---------------------------------


                              Cable Systems                             
------------------------------------------------------------------------
                         Requirement                                    
------------------------------------------------------------------------
Two-tone decoder.............................................          N
Two-tone encoder.............................................          N
Digital decoder (7/1/97).....................................          Y
Digital encoder (7/1/97).....................................          Y
Audio message on all channels (7/1/97).......................      Y \2\
Video interruption on all channels, video message on one                
 channel (7/1/97)............................................      Y \3\
------------------------------------------------------------------------
\1\ LPTV stations that operate as television broadcast translator       
  stations are exempt from the requirement to have EAS equipment.       
\2\ Shall transmit two-tone signal, but it may be from a storage device.
\3\ Shall provide video on all channels or other alerting techniques to 
  certified hearing impaired and deaf subscribers.                      

    (b) Class D non-commercial educational FM stations as defined in 
Sec. 73.506 of this chapter and LPTV stations as defined in 
Sec. 74.701(f) of this chapter are not required to have or operate EAS 
encoders as defined in Sec. 11.32. LPTV stations that operate as 
television broadcast translator stations, as defined in Sec. 74.701(b) 
of this chapter are not required to comply with the requirements of this 
part. FM broadcast booster stations as defined in Sec. 74.1201(f) of 
this chapter and FM translator stations as defined in Sec. 74.1201(a) of 
this chapter which entirely rebroadcast the programming of other local 
FM broadcast stations are not required to comply with the requirements 
of this part.
    (c) Organizations using other communications systems or technologies 
such as, Direct Broadcast Satellite (DBS), low earth orbit satellite 
systems, paging, computer networks, etc. may join the EAS on a voluntary 
basis by contacting the FCC. Organizations that choose to voluntarily 
participate must

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comply with the requirements of this part.

    Note: Compliance by Cable Systems with the July 1, 1997 date 
specified in this section is extended until a date to be specified by 
the Commission and published in the Federal Register.

[ 59 FR 67092 , Dec. 28, 1994, as amended at  60 FR 55998 , Nov. 6, 1995;  62 FR 33753 , June 23, 1997]


Goto Section: 11.1 | 11.12

Goto Year: 1996 | 1998
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