Q: Does the door need to be covered if it is outside the work area but used by workers?

If the work area is smaller than the entire room, and the door is not within the work area, you do not need to cover the door with plastic.  However, all personnel, tools, and other items,...

If the work area is smaller than the entire room, and the door is not within the work area, you do not need to cover the door with plastic.  However, all personnel, tools, and other items, including the exterior of containers of waste, must be free of dust and debris when leaving the work area.