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![DChurchill](themes/aaAle/images/interface/profile-pic-placeholder.47cf740a.png)
Hi there, my WOF has been failed because there are bubbles in the tint on the rear window. These have been there for many years and I've never had a problem getting my WOF. The bubbles are from 1/2 cm high x 2cm wide to 2cm high x 5cm wide, and most are in the bottom quarter of the window. They said the bubbles impair vision, but I don't even notice them when looking in my rear vision mirror. I'd like to know what size or number of bubbles are acceptable. Are there regulations concerning this? Thanks.
![Anon](/assets/aa/aa-avatar.png?m=1466990309)
Hi there,
The WoF rules state: overlays are not allowed to:
– have any bubbling or other defect that could unreasonably impair vision, or
– have a mirrored effect that is sufficient to dazzle other road users, or
– affect the performance of any high-mounted stop lamp fitted to the vehicle.