Equipment, cabling, and terminations providing Fire and Emergency Services (FES) or evacuation paging systems must be clearly identified and marked.

All equipment providing emergency life safety services, such as 911 services, must be clearly identified. The availability of Fire and Emergency Services (FES) supporting emergency life safety services such as 911 (or European 112) and emergency evacuation paging services is essential. The specific equipment that handles emergency 911 (112) service must be clearly identified to maintenance and administration personnel. Identification of the transmission equipment, i.e. DS-1 circuit packs and T-1 cross connect ports, should additionally be the focus for identification as well as any terminations occurring at the MDF. This will help to preclude unnecessary service outages due to making wrong system or wiring changes due to unidentified and unmarked systems supporting this function while maintenance and administration personnel perform standard tasks or work nearby which could result in denial of service of emergency services.