Jim Patrico Progressive Farmer Senior Editor
Mon Sep 9, 2013 03:05 PM CDT

The summer has been full of announcements about new tractors, combines and sprayers running Tier 4 Final engines.

This comes at the end of a long road to emissions control compliance for farm equipment manufacturers, who have had engineers hard at work for years developing sophisticated engines that not only produce a lot of horsepower, but do it in EPA-approved, environmentally-friendly ways.

Finally, Tier 4 Final regulations take effect for high horsepower tractors, combines and sprayers beginning January 1, 2014.

For Case IH, the road to the EPA's Tier 4 has been a more direct road than for some of ...

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