[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR232.301] [Page 503] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 232_BRAKE SYSTEM SAFETY STANDARDS for FREIGHT and OTHER NON-PASSENGER TRAINS and EQUIPMENT; END-of-TRAIN DEVICES--Table of Contents Subpart D_Periodic Maintenance and Testing Requirements Sec. 232.301 Scope. This subpart contains the periodic brake system maintenance and testing requirements for equipment used in freight and other non- passenger trains.