[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR220.27]

[Page 252]
 
                        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. 220.27  Identification.

    (a) Except as provided in paragraph (c) of this section, the 
identification of each wayside, base or yard station shall include at 
least the following minimum elements, stated in the order listed:
    (1) Name of railroad. An abbreviated name or initial letters of the 
railroad may be used where the name or initials are in general usage and 
are understood in the railroad industry; and
    (2) Name and location of office or other unique designation.
    (b) Except as provided in paragraph (c) of this section, the 
identification of each mobile station shall consist of the following 
elements, stated in the order listed:
    (1) Name of railroad. An abbreviated name or initial letters of the 
railroad may be used where the name or initial letters are in general 
usage and are understood in the railroad industry;
    (2) Train name (number), if one has been assigned, or other 
appropriate unit designation; and
    (3) When necessary, the word ``locomotive'', ``motorcar'', or other 
unique identifier which indicates to the listener the precise mobile 
transmitting station.
    (c) If positive identification is achieved in connection with 
switching, classification, and similar operations wholly within a yard, 
fixed and mobile units may use short identification after the initial 
transmission and acknowledgment consistent with applicable Federal 
Communications Commission regulations governing ``Station 
Identification''.