According to Oregon and California’s fire departments, trucks were stopped in Davis, California, just outside Sacramento, for maintenance and safety checks, and those trucks continued onward. Photos ...

A fire broke out at Martinez oil refinery in California on Saturday. According to a social media post by the Martinez ...

Rumors spread on social media last week that Oregon fire trucks headed for the historic fires were stopped and inspected for emissions levels by California state workers and either delayed or sent ...

Under the Clean Air Act, Congress more than a half-century ago granted California the unique ability to set its own aggressive emission standards for cars, trucks and other vehicles because of its ...

Under the 1970 Clean Air Act, the Environmental Protection Agency has for decades granted waivers to California, which has historically struggled with smog, to enact tougher pollution limits than ...

For people involved in Covid mask organizing, handing out masks serves two purposes: protection from harmful wildfire smog and against infectious diseases. I spoke to Beltrán about his experience ...

Dozens of fire-fighting vehicles from Oregon were turned away from helping to fight L.A. wildfires in January 2025 because they didn't meet California’s smog-certification standards. Rating: Context: ...