Under 1910.37(b)(5), OSHA states, “Each doorway or passage along an exit access that could be mistaken for an exit must be marked “Not an Exit” or similar designation, or be identified by a sign indicating its actual uses (e.g. closet).” The NFPA does specifically reference the "No Exit" verbiage under NFPA 101 Section 7.10.8.3.1. They state "NO EXIT" sign is needed where, "any door, passage, or stairway that is neither an exit nor a way of exit access and that is located or arranged so that it is likely to be mistaken for an exit.”