United States Environmental Protection ^1 Agency ^\xSmartWay U.S. Environmental protection Agency * 2021 SmartWay Rail Carrier Partner Tool: What's New in this Version? Version 2.0.20 of the Rail Tool contains updates and revisions to the prior version, 2.0.19. These updates have been implemented to enhance the usefulness, clarity and accuracy of the Tool, and are summarized below: Added black carbon to the Internal Metrics Report. Updated grams per kWhr emissions factors for electric fuel use based on the 2019 GREET model. Miscellaneous text and format updates for clarification. EPA 420 F 21 026 | April 20211 SmartWay Transport Partnership | epa.gov/smartway ------- |