[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR11.11]

[Page 723-724]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 11_EMERGENCY ALERT SYSTEM (EAS)--Table of Contents
 
                            Subpart A_General
 
Sec. 11.11  The Emergency Alert System (EAS).

    (a) The EAS is composed of broadcast networks; cable networks and 
program suppliers; AM, FM Low Power FM (LPFM) and TV broadcast stations; 
Class A television (CA) stations; Low Power TV (LPTV) stations; cable 
systems; wireless cable systems which may consist of Multipoint 
Distribution Service (MDS), Multichannel Multipoint Distribution Service 
(MMDS), or Instructional Television Fixed Service (ITFS) stations; and 
other entities and industries operating on an organized basis during 
emergencies at the National, State and 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 the 
effective dates in the following tables:

                                               Broadcast Stations
----------------------------------------------------------------------------------------------------------------
   EAS Equipment requirement       AM & FM         TV        FM Class D     LPTV \1\      LPFM \2\    Class A TV
----------------------------------------------------------------------------------------------------------------
Two-tone encoder \3\ \4\......  Y             Y             N             N             N            Y
EAS decoder...................  Y 1/1/97      Y 1/1/97      Y 1/1/97      Y 1/1/97      Y            Y
EAS encoder...................  Y 1/1/97      Y 1/1/97      N             N             N            Y
Audio message.................  Y 1/1/97      Y 1/1/97      Y 1/1/97      Y 1/1/97      Y            Y
Video message.................  N/A           Y 1/1/97      N/A           Y 1/1/97      N/A          Y
----------------------------------------------------------------------------------------------------------------
\1\ LPTV stations that operate as television broadcast translator stations are exempt from the requirement to
  have EAS equipment.
\2\ LPFM stations must install a decoder within one year after the FCC publishes in the Federal Register a
  public notice indicating that at least one decoder has been certified by the FCC.
\3\ Effective July 1, 1995, the two-tone signal must be 8-25 seconds.
\4\ Effective January 1, 1998, the two-tone signal may only be used to provide audio alerts to audiences before
  EAS emergency messages and the required monthly tests.


                                                  Cable Systems
[A. Cable systems serving fewer than 5,000 subscribers from a headend must either provide the National level EAS
   message on all programmed channels--including the required testing--by October 1, 2002, or comply with the
                    following EAS requirements. All other cable systems must comply with B.]
----------------------------------------------------------------------------------------------------------------
                                                           System size and effective dates
                                    ----------------------------------------------------------------------------
    B. EAS Equipment Requirement         =10,000      =5,000 but <
                                            subscribers            10,000 subscribers       <5,000 subscribers
----------------------------------------------------------------------------------------------------------------
Two-tone signal from storage device  Y 12/31/98                 Y 10/1/02                 Y 10/1/02
 \1\.
EAS decoder \3\....................  Y 12/31/98                 Y 10/1/02                 Y 10/1/02
EAS encoder \2\....................  Y 12/31/98                 Y 10/1/02                 Y 10/1/02
Audio and Video EAS Message on all   Y 12/31/98                 Y 10/1/02                 N
 channels.
Video interrupt and audio alert      N                          N                         Y 10/1/02
 message on all channels,\3\ Audio
 and Video EAS message on at least
 one channel.
----------------------------------------------------------------------------------------------------------------
\1\ Two-tone signal is only used to provide an audio alert to audience before EAS emergency messages and
  required monthly test. The two-tone signal must be 8-25 seconds in duration.
\2\ Cable systems serving <5,000 subscribers are permitted to operate without an EAS encoder if they install an
  FCC-certified decoder.
\3\ The Video interrupt must cause all channels that carry programming to flash for the duration of the EAS
  emergency message. The audio alert must give the channel where the EAS messages are carried and be repeated
  for the duration of the EAS message.
Note: Programmed channels do not include channels used for the transmission of data such as interactive games.


             Wireless Cable Systems (MDS/MMS/ITFS Stations)
 [A. Wireless cable systems serving fewer than 5,000 subscribers from a
   single transmission site must either provide the National level EAS
 message on all programmed channels--including the required testing--by
   October 1, 2002, or comply with the following EAS requirements. All
            other wireless cable systems must comply with B.]
------------------------------------------------------------------------
                                     System size and effective dates
                                ----------------------------------------
  B. EAS Equipment Requirement    = 5,000
                                     subscribers      < 5,000subscribers
------------------------------------------------------------------------
EAS decoder....................  Y 10/1/02            Y 10/1/02
EAS encoder \1\ \2\............  Y 10/1/02            Y 10/1/02
Audio and Video EAS Message on   Y 10/1/02            N
 all channels.
Video interrupt and audio alert  N                    Y 10/1/02
 message on all channels; \3\
 Audio and Video EAS message on
 at least one channel.
------------------------------------------------------------------------
\1\ Two-tone signal is only used to provide an audio alert to audience
  before EAS emergency messages and required monthly test. The two-tone
  signal must be 8-25 seconds in duration.

[[Page 724]]


\2\ Wireless cable systems serving <5,000 subscribers are permitted to
  operate without an EAS encoder if they install an FCC-certified
  decoder.
\3\ The Video interrupt must cause all channels that carry programming
  to flash for the duration of the EAS emergency message. The audio
  alert must give the channel where the EAS messages are carried and be
  repeated for the duration of the EAS message.
Note: Programmed channels do not include channels used for the
  transmission of data services such as Internet.

    (b) Class D non-commercial educational FM stations as defined in 
Sec. 73.506, LPFM stations as defined in Sec. Sec. 73.811 and 73.853, 
and LPTV stations as defined in Sec. 74.701(f) are not required to 
comply with 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. International broadcast stations as defined in Sec. 
73.701 of this chapter are not required to comply with the requirements 
of this part. Broadcast stations that operate as satellites or repeaters 
of a hub station (or common studio or control point if there is no hub 
station) and rebroadcast 100% of the programming of the hub station (or 
common studio or control point) may satisfy the requirements of this 
part through the use of a single set of EAS equipment at the hub station 
(or common studio or control point) which complies with Sec. Sec. 11.32 
and 11.33.
    (c) For purposes of the EAS, Multipoint Distribution Service (MDS) 
and Multichannel Multipoint Distribution Service (MMDS) stations 
operated in accordance with subpart K of part 21 of this chapter and 
Instructional Television Fixed Service (ITFS) stations operated as part 
of wireless cable systems in accordance with subpart I of part 74 of 
this chapter are defined as follows:
    (1) A ``wireless cable system'' is a collection of channels in the 
MDS, MMDS, or ITFS used to provide video programming services to 
subscribers. The channels may be licensed to or leased by the wireless 
cable system operator.
    (2) A ``wireless cable operator'' is the entity that has acquired 
the right to use the channels of a wireless cable system for 
transmission of programming to subscribers.
    (d) Local franchise authorities and cable television system 
operators may enter into mutual agreements that require the installation 
of EAS equipment before the required dates listed in the tables in 
paragraph (a). Additionally, local franchise authorities may use any EAS 
codes authorized by the FCC in any agreements.
    (e) 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 comply with the requirements of this part.

[63 FR 29662, June 1, 1998, as amended at 65 FR 7639, Feb. 15, 2000; 65 
FR 21657, Apr. 24, 2000; 65 FR 30001, May 10, 2000; 65 FR 34406, May 30, 
2000; 67 FR 18506, Apr. 16, 2002]