U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
Any mismatch of rails at joints may not be more than that prescribed by the following table:
Table 1 to § 299.327
| Track class | Any mismatch of rails at joints may not be more than the following: | |
|---|---|---|
| On the tread of the rail ends
(mm) | On the gauge side of the rail ends
(mm) | |
| H0 | 6 | 5 |
| H1-H2 | 4 | 4 |
| H3-H7 | 2 | 2 |
