The U.S. Environmental Protection Agency under President Donald Trump has finalised the repeal of a long-standing federal climate regulation that set greenhouse gas emissions limits for cars. The move centers on scrapping the “endangerment finding”—a 2009 determination that greenhouse gas emissions pose a danger to public health and welfare, which gave the EPA authority to regulate emissions from vehicles and other fossil fuel-burning sectors. Trump described the action as the largest deregulatory step in U.S. history, potentially freeing carmakers from costly compliance requirements tied to federal tailpipe standards.
