These rules apply to all window-cleaning activities performed
on the inside or outside of a building in which the window cleaner
is working from a level that is located more than 48 inches above
grade.
Make sure workers clean windows safely, and
properly use and maintain their window-cleaning equipment.
Important:
Window-cleaning equipment includes window-cleaner's
belts, boatswains' chairs, rope descent systems, ladders, supported
scaffolds and the support equipment used to suspend employees
cleaning windows.