The California Air Resources Board said Tuesday it withdrew its requests for federal approval to implement stricter emissions ...

The collision happened just before 2 a.m., when the big-rig truck was on a ramp from westbound Interstate Highway 580 at Central Avenue, Richmond police Lt. Donald Patchin said. It's believed that ...

California’s efforts to limit pollution from diesel-powered trains and big rigs were stalled in anticipation ... rules for locomotives and semi-trucks because the U.S. Environmental Protection ...

Officials say a woman driving a Honda stopped at a stop sign before pulling into the path of an approaching big rig. The semi-truck hit the side of the Honda. The 54-year-old woman from Lindsay ...

California’s efforts to limit pollution from diesel-powered trains and big rigs were stalled in anticipation ... rules for locomotives and semi-trucks because the U.S. Environmental Protection ...