Is It Illegal To Drive With A [repack] Cracked Windscreen Uk [SAFE]

The MOT divides the screen into two zones. Zone B is the outer edges. Zone A is the 290mm vertical strip centered on the steering wheel. But here is the nuance that gets people fined:

Consider the "Secondary Crack." You have a small chip. You ignore it. You hit a pothole, or the car heats up in the sun. That chip sends a stress fracture across the entire width of the glass. Now, in a head-on collision, the airbag deploys. The airbag inflates against the windscreen. If the screen is structurally compromised, the airbag will blow through the glass, losing pressure, and your face will meet the steering wheel instead of the cushion. is it illegal to drive with a cracked windscreen uk

There are two primary pieces of legislation that cover windscreen damage in the UK: The MOT divides the screen into two zones