Trump Administration Eases Fuel Economy Standards, Shifting Auto Industry Rules
The Trump administration has rolled back fuel economy standards, lowering the CAFE target from 50.4 mpg to 34.9 mpg by 2031, a direct reversal of stricter regulations. This change aims to provide automakers more flexibility and reduce vehicle costs, but it has sparked criticism for its potential impact on environmental goals. New rules also redefine vehicle classification, potentially altering the market's car-to-truck ratio.
The Trump administration has announced new automotive fuel economy standards that significantly relax requirements for car manufacturers, reversing stricter rules introduced under former President Joe Biden.
Announced on Monday, September 28, 2026, the policy lowers the Corporate Average Fuel Economy (CAFE) target from 50.4 miles per gallon (mpg) to 34.9 mpg by 2031, easing pressure on automakers to improve fuel efficiency across their fleets. The change marks a shift in federal automotive policy, giving manufacturers greater flexibility to continue producing petrol-powered vehicles.
According to the US Department of Transportation, the revised standards are expected to reduce the average cost of a new vehicle by $1,300 while giving manufacturers more freedom in vehicle design and production. Jonathan Morrison, administrator of the National Highway Traffic Safety Administration (NHTSA), said lower vehicle prices could make newer models more affordable for American families.
The Alliance for Automotive Innovation backed the decision, with its president and CEO, John Bozzella, arguing that the previous standards pushed the industry towards electric vehicles faster than market conditions and consumer demand justified.
The policy has drawn criticism from Democratic Senator Edward Markey, who argued that weaker fuel economy requirements could leave households more exposed to rising petrol costs.
Beyond the CAFE targets, the rule will revise how vehicles are classified as passenger cars or light trucks from the 2030 model year, changing the requirements that apply to different vehicle categories.
The Department of Transportation projects that the revised classification will shift the vehicle mix used in its calculations from 70 per cent light trucks and 30 per cent passenger cars to 30 per cent light trucks and 70 per cent passenger cars, while critics warn that weaker efficiency standards could increase fuel consumption and emissions.