47 CFR § 90.623 - Limitations on the number of frequencies assignable for conventional systems.
---
identifier: "/us/cfr/t47/s90.623"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 90.623 - Limitations on the number of frequencies assignable for conventional systems."
title_number: 47
title_name: "Telecommunication"
section_number: "90.623"
section_name: "Limitations on the number of frequencies assignable for conventional systems."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "D"
subchapter_name: "SAFETY AND SPECIAL RADIO SERVICES"
part_number: "90"
part_name: "PRIVATE LAND MOBILE RADIO SERVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154(i), 161, 303(g), 303(r), 332(c)(7), 1401-1473"
regulatory_source: "43 FR 54791, Nov. 22, 1978, unless otherwise noted."
cfr_part: "90"
---
# 90.623 Limitations on the number of frequencies assignable for conventional systems.
(a) The maximum number of frequency pairs that may be assigned to a licensee for operation in the conventional mode in a given area is five (5).
(b)-(d) [Reserved]
[47 FR 41032, Sept. 16, 1982, as amended at 48 FR 44559, Sept. 29, 1983; 48 FR 51929, Nov. 15, 1983; 58 FR 44963, Aug. 25, 1993; 59 FR 59966, Nov. 21, 1994; 62 FR 18935, Apr. 17, 1997; 90 FR 57711, Dec. 12, 2025]