California had the nation’s toughest vehicle pollution rules—but the GOP tanked them in service of 'fossil fuel donors.' ...

Originally, California’s road signs were black with white lettering, but the state changed them after a federal rule was ...

For decades, California has been able to adopt its own emissions regulations, effectively setting the bar for carmakers ...

The negative image is a relatively recent phenomenon. For decades, even before World War II, California was seen as a place of new beginnings and boundless opportunity. In 1980, its movie star ...

The House of Representatives took a trio of votes this week targeting California’s decades-old authority to enforce its own environmental standards, setting the stage for a significant standoff ...

The votes called into question California’s waiver from the Clean Air Act of 1970, an authority that has allowed the state to set stricter pollution guidelines. Republicans in the House, joined ...