47 CFR 90.537 - Trunking requirement.

§ 90.537 Trunking requirement.

(a)General use and State License channels. All systems using six or more narrowband channels in the 769-775 MHz and 799-805 MHz frequency bands must be trunked systems, except for those described in paragraph (b) of this section.

(b)Interoperability and low power channels. Trunking is permitted only on Interoperability channels specified in § 90.531(b)(1)(iii). Trunked use must be strictly on a secondary, non-interference basis to conventional operations. The licensee must monitor and immediately release these channels when they are needed for interoperability purposes. All systems using narrowband low power channels listed in § 90.531(b)(3) and (4) are exempt from the trunking requirements described in paragraph (a) of this section.

[ 79 FR 39340, July 10, 2014]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
Statutes at Large

Title 47 published on 09-May-2017 04:29

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR Part 90 after this date.

  • 2016-12-13; vol. 81 # 239 - Tuesday, December 13, 2016
    1. 81 FR 89890 - Petition for Partial Reconsideration of Action in Rulemaking Proceeding
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Petition for reconsideration.
      Oppositions to the Petition must be filed on or before December 28, 2016. Replies to an opposition must be filed on or before January 9, 2017.
      47 CFR Parts 2 and 90

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