1.1 These requirements cover floor proximity and other egress path marking and lighting systems that provide a visual delineation of the path of egress. These systems are also used to identify significant egress path features such as doors, stair banisters, obstacles or information placards. 1.1.1 These systems are intended for installation and use as required by building and fire safety codes such as the Life Safety Code, NFPA 101; the Building Construction and Safety Code, NFPA 5000, and the International Building Code sponsored by the International Code Council. 1.2 Photo-luminescent marking systems include materials such as sheeting, adhesive-backed laminates, paints or inks pre-applied to a substrate. They are intended for installation where the facility illumination is sufficient to activate the photoluminescent material. 1.3 Self-luminous systems include constructions as defined in 5.10. 1.4 Externally powered lighting systems include varying designs of electric lamps that may be intended for connection to any combination of normal power supply, emergency power supply, and battery backup. 1.5 These requirements do not cover signs that include the words "EXIT", "STAIRS", "FIRE ESCAPE", or other legally required legends or graphical symbols that are within the scope of the Standard for Emergency Lighting and Power Equipment, UL 924. 1.6 The term "product" as used in these requirements refers to egress path marking and lighting systems or any part thereof covered by these requirements unless specifically noted otherwise.