Self-applied tints are also banned under council regulations.
Why is my taxi from another city?
If you’ve ever been in a cab and wondered why the driver’s taxi licence was issued hundreds of miles away, the answer may lie in Wolverhampton.
The city has found itself at the centre of angry protests from cab drivers, who accuse the local council of making it too easy to enter the trade.
Cabbies from other parts of England and Wales say drivers newly licensed in the West Midlands are operating as far afield as Manchester and Southampton.
On Monday, private hire operators took part in the latest slow-drive through the city, calling on the authority to tighten rules around who gets permission to carry passengers.
They have taken similar action before, as have hackney carriage drivers.