The Trump administration has effectively eliminated two rules designed to promote cleaner cars. Now, as the EPA suggests not ...

An executive order directed the agency to submit a report “on the legality and continuing applicability” of the endangerment ...

In 64 California communities, including more than a dozen in the Inland Empire, cars resembling the self-driven Waymo rideshare vehicles are driving precise routes, collecting a virtual torrent of ...

The question of who has standing to fight the president in court could be clarified in a case over California’s ability to regulate car pollution. A Supreme Court challenge to California’s ...

While past efforts to reduce vehicle pollution have focused mainly on exhaust emissions, this study highlights a growing concern: "non-exhaust" emissions, which come from brakes, tires, and road wear.

These stringent emissions rules have since impacted car designs, ensuring vehicles follow the guidelines of these laws, which is why cars today are less polluting and more efficient than ever before.