This Standard covers requirements for photoluminexcent and self-luminous exit signs and egress (exit) path marking systems intended for installation as required by applicable codes. It is worth noting that the 2010 edition of the National BUilding Code (NBC) of Canada will have a new requirement that mandates the use of pictograms (e.g., "running man" and directional arrows) instead of the language based word, "Exit" as the universal sign for egress. This is in conformance to ISO standards and what is now becoming a universally accepted, language independent symbol for "Exit." TO ensure the performance of this product, the NBC will require that all photoluminescent exit signs need to meet CAN/ULC-S572-10.