The U.S. Environmental Protection Agency (EPA) announced on April 28, 2025, that it has issued an emergency fuel waiver allowing the sale of gasoline blended with 15 percent ethanol (E15) nationwide in summer 2025. EPA notes...more
On December 20, the U.S. Environmental Protection Agency (“EPA”) finalized its new national greenhouse gas (GHG) emissions standards for new passenger cars and light trucks. These new rules are the most ambitious in history,...more
On August 10, 2021, the National Highway Traffic Safety Administration (NHTSA) issued a Notice of Proposed Rulemaking (NPRM) to revise the federal corporate average fuel economy (CAFE) emissions standards in model years (MY)...more
This is the second issue of WilmerHale’s 10-in-10 Hot Topics in Energy Series. Over the next 10 weeks, our attorneys will share insights on current and emerging issues affecting the US energy sector. Attorneys from across...more