---
kind: "section"
citation: "47 C.F.R. § 90.675"
title: "47"
number: "90.675"
heading: "Information exchange."
url: "https://uscodex.org/cfr/47/90.675"
---

# §90.675. Information exchange.

- (a) **Prior coordination.** Public safety/CII licensees may notify an ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensee that they wish to receive prior notification of the activation or modification of ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone cell sites in their area. Thereafter, the ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensee must provide the following information to the public safety/CII licensee at least 10 business days before a new cell site is activated or an existing cell site is modified:
  - (1) Location;
  - (2) Effective radiated power;
  - (3) Antenna height;
  - (4) **Channels available for use.**
- (b) **Purpose of prior coordination.** The coordination of cell sites is for informational purposes only: public safety/CII licensees are not afforded the right to accept or reject the activation of a proposed cell or to unilaterally require changes in its operating parameters. The principal purposes of notification are to:
  - (1) Allow a public safety/CII licensee to advise the ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensee whether it believes a proposed cell will generate unacceptable interference;
  - (2) Permit ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensees to make voluntary changes in cell parameters when a public safety licensee alerts them to possible interference; and
  - (3) **Rapidly identify the source if interference is encountered when the cell is activated.**
- (c) **Public safety information exchange.**
  - (1) Upon request by an ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensee, public safety/CII licensees who operate radio systems in the 806-824/851-869 MHz shall provide the operating parameters of their radio system to the ESMR or [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensee.
  - (2) Public safety licensees who perform the information exchange as described in this section must notify the appropriate ESMR and [part 22](/cfr/47/part22.md) Cellular Radiotelephone licensees prior to any technical changes to their radio system.

## Notes

### Authority

Authority: 47 U.S.C. 154(i), 161, 303(g), 303(r), 332(c)(7), 1401-1473

### Source

Source: 43 FR 54791, Nov. 22, 1978, unless otherwise noted.