Diesel Retrofit & Replacement Guidance

EPA’s Diesel Retrofit and Replacement guidance has been updated and posted online.  This document provides guidance on quantifying and using emission reductions from highway and non-road diesel vehicles, engines, and equipment that have been retrofitted.  The guidance discusses how emission reductions from diesel retrofit projects can be used in a SIP, as well as transportation conformity and general conformity determinations, based on the MOVES2014a methodology described in this guidance.

There is also a spreadsheet-based tool that simplifies the creation of a nonroad retrofit input table by creating a template for that table, then filling that table based on user input. Instructions are included with the tool.


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