49 C.F.R. § 220.39 Continuous radio monitoring.
Title 49 - Transportation
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.
Title 49: Transportation
PART 220—RAILROAD COMMUNICATIONS
Subpart B—Radio and Wireless Communication Procedures
§ 220.39 Continuous radio monitoring.
