[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR234.263]



[Page 590-591]

 

                        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.  234.263  Relays.



    (a) Except as stated in paragraph (b) of this section, each relay 

that affects the proper functioning of a crossing warning system shall 

be tested at least once every four years.



[[Page 591]]



    (b)(1) Alternating current vane type relays, direct current polar 

type relays, and relays with soft iron magnetic structure shall be 

tested at least once every two years.

    (2) Alternating current centrifugal type relays shall be tested at 

least once every 12 months.

    (c) Testing of relays requiring testing on four year intervals shall 

be completed in accordance with the following schedule:

    (1) Not less than 50% by the end of calendar year 1996;

    (2) Not less than a total of 75% by the end of calendar year 1997; 

and

    (3) One hundred percent by the end of calendar year 1998.

    (d) Testing of relays requiring testing on two year intervals shall 

be completed by the end of calendar year 1996.