Ohio and South Dakota get another year to sell dirtier gasoline

US environmental regulators extended a waiver for gasoline volatility rules in Ohio and nine counties in South Dakota. This means these areas can continue to sell gasoline that evaporates more easily for another year, until April 2026.

The US environmental regulators have rules about how much gasoline can evaporate, especially in summer, to reduce smog. This waiver means that for another year, certain areas can sell gasoline that contributes more to air pollution. It delays the point at which these states must comply with cleaner air standards.