47 CFR § 27.70 - Information exchange.
---
identifier: "/us/cfr/t47/s27.70"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 27.70 - Information exchange."
title_number: 47
title_name: "Telecommunication"
section_number: "27.70"
section_name: "Information exchange."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "B"
subchapter_name: "COMMON CARRIER SERVICES"
part_number: "27"
part_name: "MISCELLANEOUS WIRELESS COMMUNICATIONS 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, 301, 302a, 303, 307, 309, 332, 336, 337, 1403, 1404, 1451, and 1452, unless otherwise noted."
regulatory_source: "62 FR 9658, Mar. 3, 1997, unless otherwise noted."
cfr_part: "27"
---
# 27.70 Information exchange.
(a) *Prior notification.* Public safety licensees authorized to operate in the 758-775 MHz and 788-805 MHz bands may notify any licensee authorized to operate in the 746-757 or 776-787 MHz bands that they wish to receive prior notification of the activation or modification of the licensee's base or fixed stations in their area. Thereafter, the 746-757 or 776-787 MHz band licensee must provide the following information to the public safety licensee at least 10 business days before a new base or fixed station is activated or an existing base or fixed station is modified:
(1) Location;
(2) Effective radiated power;
(3) Antenna height; and
(4) Channels available for use.
(b) *Purpose of prior notification.* The prior coordination of base or fixed stations is for informational purposes only. Public safety licensees are not afforded the right to accept or reject the activation of a proposed base or fixed station or to unilaterally require changes in its operating parameters. The principal purposes of notification are to:
(1) Allow a public safety licensee to advise the 746-757 or 776-787 MHz band licensee whether it believes a proposed base or fixed station will generate unacceptable interference;
(2) Permit 746-757 and 776-787 MHz band licensees to make voluntary changes in base or fixed station parameters when a public safety licensee alerts them to possible interference; and,
(3) Rapidly identify the source if interference is encountered when the base or fixed station is activated.
[72 FR 27712, May 16, 2007, as amended at 72 FR 48853, Aug. 24, 2007; 79 FR 599, Jan. 6, 2014]