Regulations last checked for updates: May 04, 2025

Title 49 - Transportation last revised: Mar 20, 2025
§ 236.22 - Semaphore signal arm; clearance to other objects.

At least one-half inch clearance shall be provided between semaphore signal arm, and any object that may interfere with its operation.

source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.
cite as: 49 CFR 236.22