Regulations last checked for updates: May 18, 2024

Title 49 - Transportation last revised: May 14, 2024
§ 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