Drivers of the most polluting vehicles must from now on pay a daily charge of up to £21.50 to drive in to central London.
From Monday, people driving older, more polluting petrol and diesel vehicles will be liable for the £10 T-charge, on top of the congestion charge of £11.50, which has been in place since 2003.
The charge has been introduced in an effort to improve air quality in the capital, where legal pollution limits are regularly exceeded. The mayor, Sadiq Khan, said he wanted to prepare Londoners for the ultra-low emission zone being introduced in April 2019.
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