[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: 49CFR229.67] [Page 302] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 229--RAILROAD LOCOMOTIVE SAFETY STANDARDS--Table of Contents Subpart C--Safety Requirements Sec. 229.67 Trucks. (a) The male center plate shall extend into the female center plate at least \3/4\ inch. On trucks constructed to transmit tractive effort through the center plate or center pin, the male center plate shall extend into the female center plate at least 1\1/2\ inches. Maximum lost motion in a center plate assemblage may not exceed \1/2\ inch. (b) Each locomotive shall have a device or securing arrangement to prevent the truck and locomotive body from separating in case of derailment. (c) A truck may not have a loose tie bar or a cracked or broken center casting, motor suspension lug, equalizer, hanger, gib or pin. A truck frame may not be broken or have a crack in a stress area that may affect its structural integrity.