Paragraph 15 Transparent or translucent surfaces
Every window or other transparent or translucent surface in a wall or partition and every transparent or translucent surface in a door or gate shall, where necessary for reasons of health and safety—
(a)
be of safety material or be protected against breakage of the transparent or translucent material; and
(b)
be appropriately marked or incorporate features so as, in either case, to make it apparent.