London’s mayor Sadiq Khan “lacks the legal power” to extend the ultra-low emission zone (Ulez) to the whole of the capital, five Conservative-led councils have argued in the high court.
Lawyers for four outer London boroughs – Bexley, Bromley, Harrow and Hillingdon – and Surrey county council said that “key information was not disclosed” in consultations over the proposed expansion of the Ulez.