The circulation path of a room is define by the objects near the walls, at 27 inches above the finished floor (AFF) or lower. The objects in this area are used for navigation for individuals with visual impairments. If no objects are present in this area, the wall defines the circulation path.
In the US, objects mounted higher than 27 inches AFF violate ADA requirements if they protrude more than four inches into the circulation path.
In this example, a thin display is mounted to the wall and protrudes from the wall less than four inches. This setup is ADA compliant.
In this example, a camera is mounted below the display. The camera protrudes from the wall more than four inches. This setup is not ADA compliant.