View all text of Subjgrp 108 [§ 236.21 - § 236.26]
§ 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.
View all text of Subjgrp 108 [§ 236.21 - § 236.26]
At least one-half inch clearance shall be provided between semaphore signal arm, and any object that may interfere with its operation.