United States President Donald Trump has announced a proposal to weaken vehicle mileage rules for the auto industry, loosening regulatory pressure on car makers to control pollution from petrol-powered cars and trucks.

The plan was announced on Wednesday. If finalised next year, it would significantly reduce fuel economy requirements, which set rules on how far new vehicles need to travel on a gallon (3.8 litres) of petrol, through the 2031 model year.

The rules will increase Americans’ access to the full range of petrol vehicles they need and can afford, officials said. The administration projects that the new standards would set the industry fleetwide average for light-duty vehicles at roughly 34.5 miles (65.5km) per gallon in the 2031 model year. That frees up car makers to produce la

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