Building Exits. A blocked or inaccessible exit does no good to people looking to get out of a building in an emergency. See the post below to read about blocked exits, and what you can do to ensure you exit will pass fire inspection.
Testing Emergency Lighting and Exit Signs. Inspectors test exit lighting every time they preform a fire inspection. Although illuminated, the signs may not be functional during an emergency. Reviewing the attached exit lighting document will detail why an emergency lighting unit may not function when you need it to, and how you can test your lights to ensure that the units will function as they were designed.