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The Visual Guide to Understanding Tier IV Final Engines

Tue October 13, 2015 - National Edition

It’s crunch time for the implementation of final Tier 4 engine emission standards. Over time, understanding both what these standards are trying to achieve and whether or not they apply to a particular application has become complex. In the interests of making them a little easier to digest, has designed a visual guide to some of the most important aspects of the new EPA standards.

To see the full chart, visit