Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Environmental Protection Agency, working hand in hand with the U.S. Small Business Administration, is providing relief ...

Testimony as prepared for Todd Fornstrom, President of Wyoming Farm Bureau Federation, before the Senate Environment and ...

I recently read a pretty startling statistic—in the next year, the off-highway engine market will consume about 20 million gallons of Diesel Exhaust Fluid (DEF). In the next five years that number is ...

Manufacturers' required DEF derates will soon be less severe. Current equipment may enter limp mode and slow to 5 mph, or stop altogether until a DEF fault is cleared. The EPA's new guidance for ...

The U.S. Environmental Protection Agency is ramping up its pressure on engine makers to fix persistent persistent diesel exhaust fluid (DEF) system failures that have disrupted farming, trucking, and ...