The Republican-controlled House of Representatives on Thursday voted to block California from enforcing its landmark state rules that would prohibit the sale of new gasoline powered passenger vehicles ...

Could your county be one of the 14 failing grades for air quality in Colorado? Uncover the shocking results of the American ...

The company’s turbines — enough to power 280,000 homes — run without emission controls in an area that leads Tennessee in ...

California, which has the unique ability to set vehicle standards, has set ambitious rules requiring all new cars to be ...

CHINA’S biggest mega-city, home to 32 million people and sprawling over an area larger than Ireland, has become notorious as ...

Automotive Defense Specialists is proud to announce new content for SMOG technicians and shops facing a potential suspension.

The House on Wednesday voted to ax California’s clean truck rules – defying Congress’s own internal watchdog in doing so. The ...