49 CFR 236.335 - Dogs, stops and trunnions of mechanical locking.

Regulations last checked for updates: Feb 11, 2026

Title 49 - Transportation last revised: Feb 03, 2026

View all text of Subpart C [§ 236.301 - § 236.387]

§ 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.

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

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

cite as: 49 CFR 236.335