Meteorologists at the National Weather Service have issued a string of "air stagnation advisories" to warn residents to brace for increased levels of pollution due to the weather conditions.

Others argue that real-world or not, flat-barrier testing is a good way to gauge the effectiveness of the restraint systems, primarily the safety belts and air bags. NHTSA's side-impact test ...

WASHINGTON (AP) - Car owners whose air bags have been replaced in the past three years may have had dangerous counterfeit bags installed, the Obama administration warned Wednesday. NHTSA is asking ...