[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

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

[CITE: 49CFR236.109]



[Page 595]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 236_RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, 

INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, 

DEVICES, AND APPLIANCES--Table of Contents

 

              Subpart A_Rules and Instructions: All Systems

 

Sec. 236.109  Time releases, timing relays and timing devices.



    Time releases, timing relays and timing devices shall be tested at 

least once every twelve months. The timing shall be maintained at not 

less than 90 percent of the predetermined time interval, which shall be 

shown on the plans or marked on the time release, timing relay, or 

timing device.



[49 FR 3384, Jan. 26, 1984]