EPA changes its diesel exhaust fluid sensor policy. The post DEF sensors no longer required on trucks, other diesel equipment ...

The Environmental Protection Agency announced on March 27, 2026, that it is removing the diesel exhaust fluid sensor requirement for all diesel equipment, a decision the agency frames as a direct ...

President Donald Trump and Environmental Protection Agency Administrator Lee Zeldin finalized long-awaited biofuel blending ...

New amicus briefs filed in court this week argue that state and local governments are unable to meet the challenge of ...

The Trump administration will waive higher-ethanol E15 gasoline from US volatility requirements this summer, expanding sales ...

The U.S. Environmental Protection Agency (EPA) has finalized the Renewable Fuel Standard (RFS) “Set 2” rule, setting renewable fuel volume requirements for 2026 and 2027 at the highest levels in the ...

The chemical calcium carbide creates flammable acetylene gas when mixed with water, requiring coordinated emergency response ...

The agency wants to postpone worker protection deadlines while it mulls changes to rules for perchloroethylene, carbon ...

The EPA will allow summer sales of E15 gasoline nationwide, aiming to increase fuel supply and give drivers lower-cost ...

After years of failing to meet Clean Air Act standards, metro Phoenix won its argument that nonlocal ozone shouldn't count.

The EPA will allow E15 fuel sales into summer to lower gas prices amid the Iran war, a move praised by officials.

The EPA announced Wednesday it will issue an emergency waiver allowing the nationwide sale of gasoline containing a higher percentage of ethanol as legislation that would allow the same remains ...