London has introduced the T - charge , a £ 10 a day tax that applies to petrol and diesel - engine vehicles that fail to meet the 2005 “ Euro 4 ” European directive that regulates vehicle emissions . Most of the vehicles were registered before 2006 . The charge comes on top of the pre - existing Congestion Charge , which is £ 11.50 for one day . The hours of operation for both charges are 7 am to 6 pm on weekdays , with the T - charge applying in the Congestion Charge zone . “There’s a budget coming up and the government’s got to step up and announce the diesel scrappage scheme to help families and businesses,” said Khan, a politician from Britain’s main opposition Labour Party. The scheme is part of an £ 875 m effort by the London Mayor 's office to address the air pollution in the capital .
London has introduced the T - charge , a £ 10 a day tax that applies to petrol and diesel - engine vehicles that fail to meet the 2005 “ Euro 4 ” European directive that regulates vehicle emissions . Most of the vehicles were registered before 2006 . The charge comes on top of the pre - existing Congestion Charge , which is £ 11.50 for one day . The hours of operation for both charges are 7 am to 6 pm on weekdays , with the T - charge applying in the Congestion Charge zone . The scheme is part of an £ 875 m effort by the London Mayor 's office to address the air pollution in the capital .