Trump administration allows high-ethanol gasoline to be sold this summer, easing smog rules

The Trump administration is allowing high-ethanol gasoline to be sold year-round, removing seasonal restrictions designed to reduce ground-level smog during summer months. The move comes as gas prices remain elevated due to geopolitical tensions, though the administration took the same step last year. High-ethanol blends, such as E15, are cheaper to produce and can lower fuel costs, but typically face EPA limits during warmer months when heat and sunlight intensify smog formation. The decision trades air quality protections for potential consumer savings at the pump. Environmental groups have criticized similar year-round ethanol fuel allowances as counterproductive to efforts to reduce ozone pollution.