This global strategy provides an operational plan for how most of the world’s low- and middle-income countries can achieve a level playing field of Euro 6/VI fuels and vehicles within the next 5 years. A global transition to low-sulfur fuels of 50 parts per million (ppm) with a target of 10 ppm fuels is the goal. The strategy covers both petrol and diesel fuels.  Alongside fuel quality improvements, the strategy recommends matching stricter vehicle emission standards, targeting the global shift to Euro 6/VI vehicle standards - and a minimum of Euro 4/IV standards. This is a crucial technical and policy response to improve air quality, reduce short-lived climate pollutants like black carbon and CO2 emissions from vehicles. Cleaner fuels and vehicles are an integral part of the global transition to zero emission vehicles and sustainable mobility.