Any mismatch of rails at joints may not be more than that prescribed by the following table-
Class of track | Any mismatch of rails at joints may not be more than the following- | |
On the tread of the rail ends (inch) | On the gage side of the rail ends (inch) | |
Class 6, 7, 8 and 9 | 1/8 | 1/8 |
49 C.F.R. §213.349