Cameras are used to monitor drivers. Owners of older cars are fined £12.50 per day for traveling. The program has been expanded across London under Mayor Sadiq Khan and covers 9 million people. ULEZ is part of the destructive Net Zero climate plan that is spreading across the West. It imposes an unfair tax, curtails travel and is a surveillance scheme.

The £1 billion in collected fines are being used to plug London's debt.  

A quarter of all ULEZ cameras have been destroyed and 90% of the cameras in southeast London have been vandalized or taken down by masked activists called 'Bladerunners'. Some residents lawfully protest near mobile camera vans and block the cameras, and even wear dinosaur costumes, which has led to clashes with security. Transport for London hired unidentified mask-wearing security guards who have been characterized as bullies and thugs who intimidate and harm peaceful protesters and residents who oppose the program. ULEZ is linked to Agenda 2030.

The program is so unpopular that Khan may be voted out of office in May 2024.