Use of Data from "Development of Emission Rates for the MOVES Model," Sierra Research, March 3, 2010

This report was developed to document inputs provided to the EPA Motor Vehicle Emissions Simulator (MOVES). This cover note provides additional detail on how this data was incorporated into official versions of MOVES, particularly MOVES2010, MOVES2010a and MOVES2010b, as released in 2009, 2010 and 2012. The report covers a variety of topics, namely: 1) Sulfur dioxide (SO2) and SO4 fractions for all vehicles; 2) Ammonia (NH3) emission rates for all vehicles; 3) NO2 and NO fractions of NOx for all vehicles; 4) Motorcycle emission rates for many pollutants; 5) Motorcycle fleet and activity inputs; 6) Emission factors/algorithms for a large number of mobile source air toxics. This note describes how each set of data was incorporated into MOVES