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… Crossties Crossties shall be made of a material to which rail can be securely fastened. Each 39 foot segment of track … of this section. Each 39 foot segment of: Class 1 track shall have five crossties; Class 2 track shall have … the tie plate or base of rail can move laterally more than 1/2 inch relative to the crossties; or cut by the tie plate …
72.568