London Mayor Sadiq Khan‘s proposed expansion of the Ultra Low Emission Zone (Ulez) is under threat after the High Court today ruled a challenge can go to trial.
Five councils who launched the legal battle – Bexley, Bromley, Harrow, Hillingdon and Surrey – have been given permission to proceed with their case for judicial review.
The Ulez zone currently covers the area inside the North and South Circular roads, but the Mayor intends to expand it across all of Greater London on August 29.