Sponsor Content: Cummins Tier 4 Final “Technology That Transforms”
February 1, 2017
U.S. Environmental Protection Agency Tier 4 emissions standards for off-road vehicles — phased in from 2008 through 2015 — introduced substantial reductions of oxides of nitrogen (NOx) and particulate matter (PM). The highest level of regulations, referred to as Tier 4 Final for engines over 751 horsepower (560 kW) took effect Jan. 1, 2015. The regulations reduce particulate matter (PM) by 80% and oxides of nitrogen (NOx) by 45% compared with Tier 2 engines produced in 2006.
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