View all text of Subpart G [§ 213.301 - § 213.369]
§ 213.323 - Track gage.
(a) Gage is measured between the heads of the rails at right-angles to the rails in a plane five-eighths of an inch below the top of the rail head.
(b) Gage shall be within the limits prescribed in the following table:
| Class of track | The gage must be at least— | But not more than— | The change of gage within 31 feet must not be greater than— | Class 6 track | 4′8″ | 4′9 1/4″ | 3/4″ | Class 7 track | 4′8″ | 4′9 1/4″ | 1/2″ | Class 8 track | 4′8″ | 4′9 1/4″ | 1/2″ | Class 9 track | 4′8 1/4″ | 4′9 1/4″ | 1/2″ |
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