Sec.  90.548   Interoperability Technical Standards.

   (a) Transmitters operating on those narrowband channels in the 769–775 and
   799–805  MHz band designated for interoperability ( see  Sec. 90.531) shall
   conform to the following technical standards:

   (1) Transmitters designed for voice operation shall include a 12.5 kHz
   bandwidth mode of operation conforming to the following standards, which are
   incorporated  by  reference:  Project 25 FDMA Common Air Interface—New
   Technology Standards Project—Digital Radio Technical Standards, approved
   April    15,    1998,    Telecommunications    Industry   Association,
   ANSI/TIA/EIA–102.BAAA–1998; Project 25 Vocoder Description, approved May 5,
   1998, Telecommunications Industry Association, ANSI/TIA/EIA–102.BABA–1998.

   (2) Transmitters designed for data transmission shall include a 12.5 kHz
   bandwidth mode of operation conforming to the following standards, which are
   incorporated by reference: Project 25 Data Overview—New Technology Standards
   Project—Digital  Radio  Technical  Standards,  approved March 3, 2000,
   Telecommunications Industry Association, ANSI/TIA/EIA–102.BAEA–2000; Project
   25 Packet Data Specification—New Technology Standards Project—Digital Radio
   Technical Standards, approved March 3, 2000, Telecommunications Industry
   Association, ANSI/TIA/EIA–102.BAEB–2000; Project 25 Radio Control Protocol
   (RCP)—New Technology Standards Project—Digital Radio Technical Standards,
   approved  March  3,  2000,  Telecommunications  Industry  Association,
   ANSI/TIA/EIA–102.BAEE–2000;  Project  25 FDMA Common Air Interface—New
   Technology Standards Project—Digital Radio Technical Standards, approved
   April    15,    1998,    Telecommunications    Industry   Association,
   ANSI/TIA/EIA–102.BAAA–1998.

   (b) The Director of the Federal Register approves these incorporations by
   reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of
   the standards listed in this section that are incorporated by reference may
   be inspected at the Federal Communications Commission, 445 12th Street, SW.,
   Washington, DC (Reference Information Center) or at the National Archives
   and Records Administration (NARA). For information on the availability of
   this    material    at    NARA,   call   202–741–6030,   or   go   to:
   http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_loc
   ations.html. The standards can also be purchased from TIA/EIA, 2500 Wilson
   Boulevard, Arlington, VA, 22201; Global Engineering Documents, 15 Inverness
   Way East, Englewood, CO 80112; or the American National Standards Institute,
   25 West 43rd Street, Fourth Floor, New York, NY 10036 (or via the Internet
   at www.ansi.org. )

   [ 67 FR 61005 , Sept. 27, 2002, as amended at  72 FR 48863 , Aug. 24, 2007]