[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR220.31]

[Page 253]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 220_RAILROAD COMMUNICATIONS--Table of Contents
 
          Subpart B_Radio and Wireless Communication Procedures
 
Sec. 220.31  Initiating a radio transmission.

            Before transmitting by radio, an employee shall:

    (a) Listen to ensure that the channel on which the employee intends 
to transmit is not already in use;
    (b) Identify the employee's station in accordance with the 
requirements of Sec. 220.27; and
    (c) Verify that the employee has made radio contact with the person 
or station with whom the employee intends to communicate by listening 
for an acknowledgment. If the station acknowledging the employee's 
transmission fails to identify itself properly, the employee shall 
require a proper identification before proceeding with the transmission.

[[Page 254]]