This TSD describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA)  to represent the year of 2017.  This document focuses on the emissions modeling data and techniques including the emission inventories, the ancillary data files, and the approaches used to transform inventories for use in air quality modeling.

• Technical Support Document (TSD): Preparation of Emissions Inventories for the 2017 North American Emissions Modeling Platform (pdf) (8.61 MB, February 2022, EPA-454/B-22-002)