Answer:
the regulation on fuels regarding CO2 emission, the creation of fuel-efficiency standards for cars, the security standards for vehicles
Step-by-step explanation:
Pretty much all cars use the same fuels (Either ethanol, gasoline or diesel) as always and they have a pattern that must be followed in order not to damage the cars and have a minimum efficiency standardized. In Japan, there's regulation about how much a fuel will emit of CO2 and some countries in the world, like Brazil, make it mandatory for cars to always use the most modern technology in their new cars when it comes to safety issues (ABS breaks, for example).