49 CFR § 220.39 - Continuous radio monitoring.

---
identifier: "/us/cfr/t49/s220.39"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 220.39 - Continuous radio monitoring."
title_number: 49
title_name: "Transportation"
section_number: "220.39"
section_name: "Continuous radio monitoring."
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "220"
part_name: "RAILROAD COMMUNICATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 20102-20103, 20103 note, 20107, 21301-21302, 20701-20703, 21304, 21311; 28 U.S.C. 2461 note; and 49 CFR 1.89."
regulatory_source: "63 FR 47195, Sept. 4, 1998, unless otherwise noted."
cfr_part: "220"
---


# 220.39 Continuous radio monitoring.

Each radio used in a railroad operation shall be turned on to the appropriate channel as designated in § 220.23 and adjusted to receive communications.