Key proposals include:

• Implementing a £10 Emissions Surcharge (dubbed the ‘T-charge’) on the most polluting vehicles entering central London from 2017. The charge would apply to all vehicles with pre-Euro 4 emission standards (broadly speaking those registered before 2005) and will cost an extra £10 per day on top of the existing Congestion Charge.

• Introducing the central London Ultra-Low Emission Zone one year earlier in 2019.

• Extending the Ultra-Low Emission Zone (‘ULEZ’) beyond central London from 2020: for motorcycles, cars and vans, to the North and South Circular; and for lorries, buses and coaches London-wide.

  The Ultra Low Emission Zone (ULEZ) is an area within which all cars, motorcycles, vans, minibuses, buses, coaches and heavy goods vehicles (HGVs) will need to meet exhaust emission standards (ULEZ standards) or pay a daily charge to travel of £12.50 (US$16.28) per day for cars/vans/motorcycles and £100 (US$130) for coaches/HGVs/buses.

  These figures were set by the previous Mayor in 2015.The ULEZ will operate 24 hours a day, seven days a week within the same area as the current Congestion Charging Zone (CCZ), and comes into force in 2020.

• Developing a detailed proposal for a national diesel scrappage scheme for the UK Government to implement.

• Bringing forward the requirement for all double–deck buses to be ULEZ-compliant in central London from 2020 to 2019.

• Implementing clean bus corridors – tackling the worst pollution hotspots by delivering cleaner buses on the dirtiest routes