§ 90.531   Band plan.

   This section sets forth the band plan for the 758-775 MHz and 788-805 MHz
   public safety bands.

   (a) Base and mobile use. The 763-775 MHz band may be used for base, mobile
   or fixed (repeater) transmissions. The 793-805 MHz band may be used only for
   mobile or fixed (control) transmissions.

   (b) Narrowband segments. There are two band segments that are designated for
   use with narrowband emissions. Each of these narrowband segments is divided
   into 960 channels having a channel size of 6.25 kHz as follows:
   Frequency range Channel Nos.
   769-775 MHz            1-960
   799-805 MHz          961-1920

   (1) Narrowband interoperability channels. The following narrowband channels
   are designated for nationwide interoperability licensing and use: 23, 24,
   39, 40, 63, 64, 79, 80, 103, 104, 119, 120,143, 144, 159, 160, 183, 184,
   199, 200, 223, 224, 239, 240, 263, 264, 279, 280, 303, 304, 319, 320, 641,
   642, 657, 658, 681, 682, 697, 698, 721, 722, 737, 738, 761, 762, 777, 778,
   801, 802, 817, 818, 841, 842, 857, 858, 881, 882, 897, 898, 921, 922, 937,
   938, 983, 984, 999, 1000, 1023, 1024, 1039, 1040, 1063, 1064, 1079, 1080,
   1103, 1104, 1119, 1120, 1143, 1144, 1159, 1160, 1183, 1184, 1199, 1200,
   1223, 1224, 1239, 1240, 1263, 1264, 1279, 1280, 1601, 1602, 1617, 1618,
   1641, 1642, 1657, 1658, 1681, 1682, 1697, 1698, 1721, 1722, 1737, 1738,
   1761, 1762, 1777, 1778, 1801, 1802, 1817, 1818, 1841, 1842, 1857, 1858,
   1881, 1882, 1897, 1898.

   (i) Narrowband data Interoperability channels. The following channel pairs
   are reserved nationwide for data transmission on a primary basis: 279/1239,
   280/1240, 921/1881, and 922/1882. Voice operations are permitted on these
   channels on a secondary basis.

   (ii) Narrowband calling Interoperability channels. The following channel
   pairs are dedicated nationwide for the express purpose of Interoperability
   calling only: 39/999, 40/1000, 681/1641, and 682/1642. They may not be used
   primarily for routine, day-to-day communications. Encryption is prohibited
   on the designated calling channels.

   (iii)  Narrowband  trunking  Interoperability  channels. The following
   Interoperability channel pairs may be used in trunked mode on a secondary
   basis to conventional Interoperability operations: 23/983, 24/984, 103/1063,
   104/1064,  183/1143, 184/1144, 263/1223, 264/1224, 657/1617, 658/1618,
   737/1697, 738/1698, 817/1777, 818/1778, 897/1857, 898/1858. For every ten
   general use channels trunked at a station, entities may obtain a license to
   operate in the trunked mode on two of the above contiguous Interoperability
   channel pairs. The maximum number of Interoperability channel pairs that can
   be trunked at any one location is eight.

   (2)  Narrowband General Use Reserve channels. The following narrowband
   channels are designated for General Use subject to Commission approved
   regional planning committee regional plans and technical rules applicable to
   General Use channels: 37, 38, 61, 62, 77, 78, 117, 118, 141, 142, 157, 158,
   197, 198, 221, 222, 237, 238, 277, 278, 301, 302, 317, 318, 643, 644, 683,
   684, 699, 700, 723, 724, 763, 764, 779, 780, 803, 804, 843, 844, 859, 860,
   883, 884, 923, 924, 939, 940, 997, 998, 1021, 1022, 1037, 1038, 1077, 1078,
   1101, 1102, 1117, 1118, 1157, 1158, 1181, 1182, 1197, 1198, 1237, 1238,
   1261, 1262, 1277, 1278, 1603, 1604, 1643, 1644, 1659, 1660, 1683, 1684,
   1723, 1724, 1739, 1740, 1763, 1764, 1803, 1804, 1819, 1820, 1843, 1844,
   1883, 1884, 1899, 1900.

   (i) T-Band Relocation. The narrowband channels established in paragraph
   (b)(2)  are designated for priority access by public safety incumbents
   relocating  from  the 470-512 MHz band in the urban areas specified in
   § § 90.303 and 90.305 of the Commission's rules provided that such incumbent
   commits to return to the Commission an equal amount of T-Band spectrum and
   obtains concurrence from the relevant regional planning committee(s). Public
   safety T-Band incumbents shall enjoy priority access for a five year period
   starting  from the date the Public Safety and Homeland Security Bureau
   releases a public notice announcing the availability of Reserve Channels for
   licensing.

   (ii)  Deployable Trunked Systems. Outside the urban areas specified in
   § § 90.303 and 90.305 of the Commission's rules, the 700 MHz Regional Planning
   Committees may designate no more than eight 12.5 kilohertz channel pairs for
   temporary deployable mobile trunked infrastructure (F2BT) that could be
   transported into an incident area to assist with emergency response and
   recovery.

   (iii) General Use. Outside the urban areas specified in § § 90.303 and 90.305
   of the Commission's rules, the 700 MHz Regional Planning Committees may
   designate sixteen to twenty four 12.5 kilohertz channel pairs for General
   Use, including low power vehicular mobile repeaters (MO3).

   (3)  Narrowband  low  power channels subject to regional planning. The
   following narrowband channels are designated for low power use for on-scene
   incident  response  purposes  using  mobiles  and portables subject to
   Commission-approved regional planning committee regional plans. Transmitter
   power must not exceed 2 watts (ERP): Channels 1-8 paired with Channels
   961-968, and Channels 949-958 paired with Channels 1909-1918.

   (4)  Narrowband low power itinerant channels. The following narrowband
   channels are designated for low power use for on-scene incident response
   purposes using mobiles and portables. These channels are licensed nationwide
   for itinerant operation. Transmitter power must not exceed 2 watts (ERP):
   Channels 9-12 paired with Channels 969-972 and Channels 959-960 paired with
   Channels 1919-1920.

   (5)  Narrowband  state channels. The following narrowband channels are
   designated for direct licensing to each state (including U.S. territories,
   districts,  and possessions): 25-36, 65-76, 105-116, 145-156, 185-196,
   225-236, 265-276, 305-316, 645-656, 685-696, 725-736, 765-776, 805-816,
   845-856,  885-896,  925-936, 985-996, 1025-1036, 1065-1076, 1105-1116,
   1145-1156, 1185-1196, 1225-1236, 1265-1276, 1605-1616, 1645-1656, 1685-1696,
   1725-1736, 1765-1776, 1805-1816, 1845-1856, 1885-1896. Voice operations on
   these channels are subject to compliance with the spectrum usage efficiency
   requirements set forth in § 90.535(d).

   (6) Narrowband general use channels. All narrowband channels established in
   this paragraph (b), other than those listed in paragraphs (b)(1), (b)(4),
   (b)(5), and (b)(7) of this section are reserved to public safety eligibles
   subject to Commission approved regional planning committee regional plans.
   Voice  operations on these channels are subject to compliance with the
   spectrum usage efficiency requirements set forth in § 90.535(d).

   (7) Air-ground channels. The following channels are reserved for air-ground
   communications  to  be  used by low-altitude aircraft and ground based
   stations: 21/981, 22/982, 101/1061, 102/1062, 181/1141, 182/1142, 261/1221,
   262/1222,  659/1619, 660/1620, 739/1699, 740/1700, 819/1779, 820/1780,
   899/1859, and 900/1860.

   (i) Airborne use of these channels is limited to aircraft flying at or below
   457 meters (1500 feet) above ground level.

   (ii) Aircraft are limited to 2 watts effective radiated power (ERP) when
   transmitting while airborne on these channels.

   (iii) Aircraft may transmit on either the mobile or base transmit side of
   the channel pair.

   (iv) States are responsible for the administration of these channels.

   (c) [Reserved]

   (d) Combining channels. Except as noted in this section, at the discretion
   of the appropriate regional planning committee, contiguous channels may be
   used  in  combination  in order to accommodate requirements for larger
   bandwidth emissions, in accordance with this paragraph. Interoperability
   channels may not be combined with channels in another group except for
   channels for secondary trunking channels.

   (1) Narrowband. Subject to compliance with the spectrum usage efficiency
   requirements set forth in § 90.535, two or four contiguous narrowband (6.25
   kHz) channels may be used in combination as 12.5 kHz or 25 kHz channels,
   respectively. The lower (in frequency) channel for two channel combinations
   must be an odd (i.e., 1, 3, 5 *  *  *) numbered channel. The lowest (in
   frequency) channel for four channel combinations must be a channel whose
   number is equal to 1 + (4xn), where n = any integer between 0 and 479,
   inclusive (e.g., channel number 1, 5, *  *  * 1917). Channel combinations
   are designated by the lowest and highest channel numbers separated by a
   hyphen, e.g., “1-2” for a two channel combination and “1-4” for a four
   channel combination.

   (2) [Reserved]

   (e) Channel pairing. In general, channels must be planned and assigned in
   base/mobile pairs that are separated by 30 MHz. However, until December 31,
   2006, channels other than those listed in paragraphs (b)(1) and (c)(1), may
   be planned and assigned in base/mobile pairs having a different separation,
   where necessary because 30 MHz base/mobile pairing is precluded by the
   presence of one or more co-channel or adjacent channel TV/DTV broadcast
   stations.

   (f) Internal guard band. The internal guard band (768-769/798-799 MHz) is
   reserved.

   (g) Broadband. The 758-768 MHz and 788-798 MHz bands are allocated for
   broadband communications.

   [ 63 FR 58651 , Nov. 2, 1998, as amended at  65 FR 66654 , Nov. 7, 2000;  66 FR 10635 , 10636, Feb. 16, 2001;  67 FR 61005 , Sept. 27, 2002;  67 FR 76700 , Dec.
   13, 2002;  72 FR 48860 , Aug. 24, 2007;  77 FR 62463 , Oct. 15, 2012;  79 FR 71325 , Dec. 2, 2014]

   Effective Date Note: At  79 FR 71325 , Dec. 2, 2014, § 90.531(b)(2) and (b)(7)
   were  revised.  These  paragrapghs  contain information collection and
   recordkeeping requirements and will not become effective until approval has
   been given by the Office of Management and Budget.

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