10. Glazing adjacent to stairways, landings and ramps within 36 inches (914 mm) horizontally of a walking surface when the exposed surface of the glass is less than 60 inches (1524 mm) above the plane of the adjacent walking surface.

At 36-40 inches from the bottom of the stair, it *does not* clear the walking surface (the landing) by 36 inches.

Stairways are required to have landings at their top and bottom, and the depth of the landing (in the direction of travel) is required to be at least the width of the stairway. If the stairway is 36" wide, the landing need only be 36" deep. If the stairway is 38" wide, the landing needs to be 38" deep.

With the window being within 36" of the bottom landing, the window needs to be safety glazing.

I always told my clients, and wrote it up in the report as, 'safety glazing is *REQUIRED* to have the safety glazing mark visible after glazing, and, when the mark is not visible, a ball peen hammer will quickly determine if it *WAS* safety glazing or *WAS* not' ... with "was" being past tense and the key word in there.

Never had anyone tell me to go ahead and test one, but the point was not lost on my clients - that it needs replacing *regardless*.