Obstacles

Section 1024.2.5 describes how Obstacles at or below 6 feet 6 inches (78 inches) in height and projecting more than 4 inches into the egress path get marked with the black-photoluminescent obstacle marking. Such obstacles may be pipes, fire hoses, emergency telephone boxes, evacuation chair metal storage cabinets and other protrusions.

These PERMALIGHT® obstacle markings are UL1994-listed by Underwriters Laboratories Inc.