Fire extinguisher mandatory

 When I worked in retail it was mandatory that a fire extinguisher was at the door and the warehouse door.   There also was a glowing EXIT sign in Green so you could see it thru the fire and smoke if a fire should ever happen.

  A man from the Government came every 6 months to inspect the fire extinguisher and make sure it did not show rust.  When I worked at Google they had this also including Maps by the copier machines.  All copier machines were found near the doors.