In the new year, area farmers say they anticipate higher input costs across the board from seed to chemicals, but one of their largest expenses will be switching to the newest low-emission tractors.

Ottawa Truck says it's the first to sell terminal tractors powered by Cummins Tier 4i (Interim) diesel engines that meet new U.S. Environmental Protection Agency emissions standards. The engine uses ...

It’s crunch time for the implementation of final Tier 4 engine emission standards. Over time, it has become difficult to understand both what these standards are trying to achieve and whether or not ...

Harley Marine Services accepted delivery of its newest tractor tug, Earl W Redd, a first-of-its-kind workboat equipped with Caterpillar's Tier 4 emissions technology. The vessel enters the Harley ...