The Trump EPA rule, replacing the Obama EPA's Clean Power Plan, combines a Clean Power Plan repeal with new, less stringent emissions reductions guidelines.
Energy giants and conservative groups have been aggressively pushing Trump’s rollback of fuel efficiency rules for automobiles, a Times investigation found.
The Trump administration is speeding toward a major collision with California over fuel economy rules for cars and SUVs, as it moves to throw overboard entirely strict mileage per gallon targets for the coming decade — and to prevent California and other states from enforcing them on their own.