---
kind: "section"
citation: "49 C.F.R. § 236.335"
title: "49"
number: "236.335"
heading: "Dogs, stops and trunnions of mechanical locking."
url: "https://uscodex.org/cfr/49/236.335"
---

# §236.335. Dogs, stops and trunnions of mechanical locking.


Driving pieces, dogs, stops and trunnions shall be rigidly secured to locking bars. Swing dogs shall have full and free movement. Top plates shall be maintained securely in place.


## Notes

### Authority

Authority: 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20157, 20301-20303, 20306, 20501-20505, 20701-20703, 21301-21302, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.