When the Tier rating program started in the U.S. in 1996, the goal was to reduce nitrogen oxide and particulate matter from the exhaust of diesel engines. Since then, engine technology has been ...

President Donald Trump has been proposing new emissions standards, which are due to come into effect by 2027 at the earliest. But the United States Environmental Protection Agency (EPA) is proposing ...

Carrier's engine emissions system will reduce particulate emissions beyond what is required for EPA Tier 4 compliance and far exceeds the requirements of CARB's applicable ultra-low diesel emission ...

CSX Transportation (CSXT), Jacksonville, Fla., has commended the U.S. Environmental Protection Agency (EPA) for new emissions regulations that will require railroads to reduce NOx and particulate ...