---
kind: "section"
citation: "49 C.F.R. § 230.105"
title: "49"
number: "230.105"
heading: "Lateral motion."
url: "https://uscodex.org/cfr/49/230.105"
---

# §230.105. Lateral motion.

- (a) **Condemning limits.** The total lateral motion or play between the hubs of the wheels and the boxes on any pair of wheels shall not exceed the following limits:
- (b) **Limits increased.** These limits may be increased on steam locomotives operating on track where the curvature exceeds 20 degrees when it can be shown that conditions require additional lateral motion.
- (c) **Non-interference with other parts.** The lateral motion shall in all cases be kept within such limits that the driving wheels, rods, or crank pins will not interfere with other parts of the steam locomotive.

## Notes

### Authority

Authority: 49 U.S.C. 20103, 20107, 20702; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 64 FR 62865, Nov. 17, 1999, unless otherwise noted.