The SmartWay Transport Partnership was officially launched by the U.S. EPA in 2004. EPA and Natural Resources Canada (NRCan) worked to expand the program to Canada by establishing joint administration of the SmartWay program under a letter of agreement dated July 2012. Under this agreement EPA and NRCan have fully harmonized their data collection, emission calculation, and database functionality for data sharing to create one seamless program, with the same partner recognition and logo qualification requirements in each country.31 Accordingly, SmartWay now covers all U.S. and Canadian domestic truck, rail, intermodal, and barge freight transport. The integration process between these two agencies has been successful and may serve as a template guiding future program harmonization efforts. As SmartWay develops reciprocal agreements with other countries developing compatible programs, the emission data from those countries could potentially be included in a global SmartWay database.