Experts don’t know how much gas prices may rise from the revised California climate program, which tightens standards and ...

California air quality regulators late Friday approved tougher rules to encourage use of lower-carbon fuels, overriding ...

The California Air Resources Board strengthened climate and pollution standards for gasoline and other transportation fuels, ...

New regulations aimed toward limiting the carbon intensity in fuels in California could curb the state’s ongoing drop in gas ...

California's Air Resources Board has voted Friday night to change fuel standards to reduce emissions and improve air quality, ...

The California Air Resources Board on Friday approved stricter carbon-intensity standards on fuels to help meet the state’s ...

California's Air Resources Board (CARB) is set to vote Friday on new clean air rules that could potentially lead to an ...

California regulators will vote Friday on whether to tighten ... Republican lawmakers have criticized the changes for their ...

California air regulators will vote Friday on updates to a key climate program aimed at reducing planet-warming emissions ...

California’s Air Resources Board is set to vote on changes to its Low Carbon Fuel Standard, which could lead to significant ...

Proposed changes to the Low Carbon Fuel Standard would require larger reductions in carbon emissions from transportation ...

A proposal to tighten emissions limits would help develop alternative fuels. But it faces significant opposition over ...