The proposed emergency exit plans, procedures, and evacuation signs shall be posted after approval by the Fire Department. Evacuation signs shall be located in every elevator lobby above and below the ground floor, adjacent to the doorway leading to the exit stairs, and in other conspicuous floor locations as required by the Department. Each dwelling unit, guest room, and office area shall be provided with the fire safety and evacuation information, as required in Section 57.4704.4. All plans, procedures, and signs shall be properly maintained.