Longer, hotter heat waves in store for California

SACRAMENTO - California can expect more frequent and more dangerous heat waves in the coming decades, the result of global warming and the state’s aging population, according to a new climate-modeling study commissioned by the California Air Resources Board.

Researchers using a new, more comprehensive weather-modeling method found that the incidence of prolonged hot spells – those lasting 10 or more days – could rise by a factor of two to ten by the 2090s, depending on the region.

CARB passes “smog check” regulation for heavy duty trucks and buses

SACRAMENTO – The California Air Resources Board today approved a ‘smog check’ regulation for medium- and heavy-duty trucks and buses. While these heavy-duty vehicles with a gross vehicle weight rating (GVWR) greater than 14,000 pounds comprise only 3 percent of all vehicles on California roads, they are responsible for more than 50 percent of nitrogen oxides and fine particle diesel pollution from all mobile sources in the state.

CARB approves updated regulations requiring most new small off-road engines be zero emission by 2024

SACRAMENTO – The California Air Resources Board today approved a measure that will require most newly manufactured small off-road engines such as those found in leaf blowers, lawn mowers and other equipment be zero emission starting in 2024. Portable generators, including those in recreational vehicles, would be required to meet more stringent standards in 2024 and meet zero-emission standards starting in 2028.

CARB dedicates new Southern California headquarters in Riverside

RIVERSIDE – The California Air Resources Board (CARB) and its partners today dedicated a new state-of-the-art Southern California Headquarters in Riverside designed to carry CARB’s acclaimed research and vehicle emissions testing into the future. The new structure, designed to house research and testing of next-generation vehicles, continues a more than 50-year legacy of CARB’s previous labs where CARB set groundbreaking pollution standards for cars and trucks.