A. Diagrams of escape routes must be easy to read from a short distance and posted in highly visible locations throughout the environment, clearly indicating where a person is located in relation to the nearest exit(s). In lieu of posted escape routes, agency providers of Supervised Living, Supported Living, Shared Supported Living, and Host Home Services, must document training that prepares a person to exit the location in the event of an emergency. Training must take place upon admission and at least quarterly thereafter. This documentation must be maintained at the service location. Every exit shall be clearly visible, or the route to reach every exit shall be conspicuously indicated. Each means of egress, in its entirety, shall be arranged or marked so that the way to a place of safety is indicated in a clear manner. (Exclusion: Supervised Living, Supported Living and Shared Supported Living service locations that are not owned or controlled by a certified agency provider and Host Homes.)B. Two (2) means of egress per service area must be provided which are readily accessible at all times, remote from each other, and so arranged and constructed to minimize any possibility that both may be blocked by fire or other emergency condition. (Exclusion: Supported Living and Shared Supported Living service locations that are not owned or controlled by a certified agency provider, and Host Homes.) A service area is defined as the total certified, usable square footage in a building in which a specific service is provided. (Exception: Any single room with an area greater than six hundred [600] square feet must have at least two [2] means of egress.)C. Exits must be marked by a lighted sign with lettering, at a minimum, six (6) inches in height on a contrasting background in plain lettering that is readily visible from any direction of exit access (Exclusion: Supervised Living, Shared Supported Living, Supported Living, and Host Homes). The signs must be lighted at all times. The illuminated lights must have battery backup in order to be readily visible in the event of electrical failure (facilities with backup generator systems are excluded from the battery backup requirement).D. Any accessible window(s) must be operable from the inside without the use of tools and must provide a clear opening of not fewer than twenty (20) inches in width and twenty-four (24) inches in height (Exclusion: Crisis Residential Units, Shared Supported Living, and Supported Living service locations that are not owned or controlled by a certified agency provider and Host Homes).E. No door in any path of exit, or the exit door itself, may be locked when the building is occupied unless an emergency system is in place that will allow the door to unlock in an emergency (Exclusion: Supporting Living, Supervised Living, Shared Supported Living, and Host Homes).F. Exterior doors identified/utilized as a means of egress shall not be permitted to have key-operated locks from the egress side. Section 41-4-7 of the Mississippi Code, 1972, as Amended