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Search results with tag "Cummins tier 4 technology overview"
Cummins Tier 4 Technology Overview - Centers for Disease ...
www.cdc.govConstruction and Ag - 2011 . 4 2 2 4 4 3 2 . Notes: 1. Construction and Ag regulations phase-in by engine horsepower category. The above chart is for engines rated at 300hp.