Daily eCFR

§ 299.327 Rail end mismatch.

49 CFR 299.327

Citation49 CFR 299.327

CorpusDaily eCFR

Displayed edition2026-09-17

Last updated2026-09-17

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