California has historically been the prime mover of America’s efforts toward cleaner cars, but its aggressive electric ...

DPF Parts Direct reports California's Clean Truck Check aims to reduce diesel emissions, raising compliance costs and ...

California Emissions Law Might Get A Big Change, With Jay Leno’s Help. ... 15 years, allowing 1990 models to avoid the exhaust sniffer entirely, provided they're insured under a collector policy.

The waiver reinstates California’s authority to regulate greenhouse gas emissions under the federal Clean Air Act for model years 2017 through 2025, effective immediately.

Officials from California, ... an action that would reverse a Trump administration policy and could help usher in stricter emissions standards for new passenger vehicles nationwide. ...

The road to adoption of Zero Emissions Vehicles (ZEVs) is growing steeper. For over two decades, states used incentives and ...

California is embarking on an audacious new climate plan that aims to eliminate the state’s greenhouse gas footprint by 2045, and in the process, slash emissions far beyond its borders. The ...

Since 1990, California has used its authority under the federal Clean Air Act to enact more aggressive rules on emissions from diesel vehicles and engines compared to the rest of the U.S ...

A California law mandating that half of all medium- and heavy-duty vehicles acquired by the state and local governments be emissions-free between 2024 and 2026 is being challenged in a lawsuit ...

California’s greenhouse gas emissions have plunged in recent years across most sectors, falling about 2.4 percent in 2022 in comparison to the previous year, state regulators reported on Friday.

California must retire existing heavy-duty trucks to meet the state’s 2045 carbon neutrality goals, in addition to promoting the purchase of zero-emissions vehicles (ZEVs), a new study has found.

California Attorney General Rob Bonta called the state’s vehicle-emissions standards “critical to the fight against climate change’’ and crucial to improve air quality, protect public ...