In 2006, the Legislature passed the California Global Warming Solutions Act of 2006, also known as Assembly Bill 32 or AB 32, which created a comprehensive, multi-year program to reduce greenhouse gas emissions in California. AB 32 required the California Air Resources Board to develop a Scoping Plan...

Decades of clean air progress stand to be reversed if the U.S. Environmental Protection Agency repeals its rule on limiting production of “glider kits,” said Steve Cliff, deputy executive officer of the California Air Resources Board, testifying at a public hearing Monday at EPA headquarters in Washington...

The U.S. Environmental Protection Agency announced recent settlements with Wal-Mart Transportation, LLC, and the United States General Services Administration that require upgraded diesel particulate filters on their truck fleets to resolve alleged violations of California’s Truck and Bus Regulation. Wal-Mart...

SACRAMENTO — The California Air Resources Board and the state Attorney General’s office have filed comments challenging federal efforts to re-open evaluation of vehicle emissions standards for model years 2021-2025. The comments state that any weakening of these rules presents a threat to the health...

On behalf of the People of California, the California Air Resources Board (CARB), the Minnesota Pollution Control Agency, and a coalition of 10 attorneys general, California Attorney General Xavier Becerra filed an amicus brief in support of the efforts by the Natural Resources Defense Council and private...

Bicycle commuter with air pollution measuring backpack.  The mode of travel you take on your daily work commute can make a big difference in your exposure to air pollution, a new study finds. The study, “Commuter exposure to PM2.5, BC, and UFP in six common transport micro-environments in Sacramento,...

The California Air Resources Board reached settlements with Burlington Northern Santa Fe Railway Company (BNSF) and Union Pacific Railroad Company (UPRR) to resolve violations of the state’s drayage truck regulation, which requires cleanup of trucks servicing the state’s busy ports and intermodal rail...

SACRAMENTO – Demonstrating California’s progress toward a clean-energy economy, the California Air Resources Board this week released the latest statewide inventory of greenhouse gas emissions, a report showing significant emissions reductions along with the strongest economic growth since 2005. “This...

BEIJING – Governor Edmund G. Brown Jr., California Air Resources Board Chair Mary D. Nichols, City of Los Angeles Chief Sustainability Officer Matt Petersen and other state officials met today with China’s leading automakers and battery manufacturers in an effort to expand cooperation and accelerate...

The California Air Resources Board and U.S. Environmental Protection Agency Friday announced approval of an emissions modification for a limited number of the Volkswagen 2.0 liter diesel vehicles with a so-called defeat device. The vehicles eligible for this modification are referred to as “Generation...