[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR234.209]

[Page 475]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 234--GRADE CROSSING SIGNAL SYSTEM SAFETY--Table of Contents
 
             Subpart D--Maintenance, Inspection, and Testing
 
Sec. 234.209  Interference with normal functioning of system.

    (a) The normal functioning of any system shall not be interfered 
with in testing or otherwise without first taking measures to provide 
for safety of highway traffic that depends on normal functioning of such 
system.
    (b) Interference includes, but is not limited to:
    (1) Trains, locomotives or other railroad equipment standing within 
the system's approach circuit, other than normal train movements or 
switching operations, where the warning system is not designed to 
accommodate those activities.
    (2) Not providing alternative methods of maintaining safety for the 
highway user while testing or performing work on the warning systems or 
on track and other railroad systems or structures which may affect the 
integrity of the warning system.

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