Most vehicles need catalytic converters not only so they perform at their best, but also because it's the law. Here's how they work and why they are required.

How much does a catalytic converter shield cost on a 2024 Toyota Prius? And how does it change the car’s performance? We ...

New motorcycles tend to have a smaller catalytic converter installed in their exhaust systems as a response to concerns over motorcycle emissions. Not all bikes have a converter installed, however.

(The Center Square) - California Gov. Gavin Newsom is in the nation’s capital seeking federal waivers for eight of California’s emissions policies. Without the Republican-opposed waivers, California ...

California air regulators will vote Friday on changes to a key climate program aimed at reducing planet-warming emissions from transportation fuels that has a wide swath of critics — from ...

The California Volkswagen (VW) Zero-Emission Freight and Marine (ZEFM) Program Administrator is preparing to open a statewide solicitation offering up to $25 million to owners of cargo handling ...

California has a special authority to set its own emissions standards under waivers granted by the Clean Air Act. Other states can then adopt California’s standards. Trump’s first ...

U.S. District Judge Otis Wright II denied a request from the U.S. Chamber of Commerce and other business groups to block two California laws requiring corporate climate emissions data disclosures for ...

Regulators say the changes are essential to reducing carbon emissions. But political leaders ... Filion, 18, of California, called in false reports of bombings and mass shootings across the ...

First Shift: Trump vs. California regulations Webasto to lay off 218 employees | American Axle reports improved profits | Dodge Viper gets a restoration (Tom Carl) ...

California air regulators voted late Friday, Nov. 8, to strengthen a policy aimed at boosting low-carbon fuels and lowering green house gas emissions from the transportation sector in pursuit of ...