[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: 49CFR234.269]

[Page 479]
 
                        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. 234.269  Cut-out circuits.

    Each cut-out circuit shall be tested at least once every three 
months to determine that the circuit functions as intended. For purposes 
of this section, a cut-out circuit is any circuit which overrides the 
operation of automatic warning systems. This includes both switch cut-
out circuits and devices which enable personnel to manually override the 
operation of automatic warning systems.