Rail end mismatch.

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