49 CFR 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 11/2 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.
Title 49 published on 2013-10-01
no entries appear in the Federal Register after this date.