49 CFR 213.53 - Gage.

§ 213.53 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 -
Excepted track N/A 4′10 1/4″.
Class 1 track 4′8″ 4′10″.
Class 2 and 3 track 4′8″ 4′9 3/4″.
Class 4 and 5 track 4′8″ 4′9 1/2″.

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