In Zone A, a single damaged area shall be contained within a 10mm diameter circle. A combination of minor damage areas shall not seriously restrict the drivers view. Windscreen stickers, or other obstructions, shall not encroach more than 10mm.
In Zone B, a single damaged area shall be contained within a 40mm diameter circle. Windscreen stickers, or other obstructions, shall not encroach more than 40mm.
Windscreen repairs shall be assessed the same as unrepaired damage and shall not restrict the driver's vision. Cracks passing through the swept area of the windscreen and reaching two points at the edge shall be deemed torender the windscreen insecure.
Items placed in, or stuck to, the windscreen could be stickers, pennants, satellite navigation monitors or decorations