Emissions testing laws are a crucial component in the fight against air pollution and climate change, yet these regulations ...

Emissions system issues have plagued operators for years, particularly after the implementation of diesel particulate filters and NOx sensors in 2007 and 2010, respectively. During that time, many ...

Several times a year it seems we hear of shop owners and even some truck owners who have been caught out of emissions compliance, whether gutting the hardware of the internal emissions-system ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO (WGN) — About once every two years, ...

Editor’s Note: This story has been updated to clarify the timeframe for TCEQ’s data of likely clean scans. The agency was aware of more than 1.5 million likely ...