[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: 49CFR234.107]

[Page 474-475]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 234--GRADE CROSSING SIGNAL SYSTEM SAFETY--Table of Contents
 
      Subpart C--Response to Reports of Warning System Malfunction
 
Sec. 234.107  False activation.

    Upon receipt of a credible report of a false activation, a railroad 
having maintenance responsibility for the highway-rail grade crossing 
warning system shall promptly initiate efforts to warn highway users and 
railroad employees at the crossing by taking the following actions:
    (a) Prior to a train's arrival at the crossing, notify the train 
crew of the report of false activation and notify any other railroads 
operating over the crossing;
    (b) Notify the law enforcement agency having jurisdiction over the 
crossing, or railroad police capable of responding and controlling 
vehicular traffic; and
    (c) Provide for alternative means of actively warning highway users 
of approaching trains, consistent with the following requirements (see 
Appendix B for a summary chart of alternative means of warning).
    (1)(i) If an appropriately equipped flagger is providing warning for 
each direction of highway traffic, trains may proceed through the 
crossing at normal speed.
    (ii) If at least one uniformed law enforcement officer (including a 
railroad police officer) provides warning to highway traffic at the 
crossing, trains may proceed through the crossing at normal speed.
    (2) If there is not an appropriately equipped flagger providing 
warning for each direction of highway traffic, or if there is not at 
least one uniformed law enforcement officer providing warning, trains 
with the locomotive or cab car leading, may proceed with caution

[[Page 475]]

through the crossing at a speed not exceeding 15 miles per hour. Normal 
speed may be resumed after the locomotive has passed through the 
crossing. In the case of a shoving move, a crewmember shall be on the 
ground to flag the train through the crossing.
    (3) In lieu of complying with paragraphs (c) (1) or (2) of this 
section, a railroad may temporarily take the warning system out of 
service if the railroad complies with all requirements of Sec. 234.105, 
``Activation failure.''
    (d) A locomotive's audible warning device shall be activated in 
accordance with railroad rules regarding the approach to a grade 
crossing.