MOVES2014a: Latest Version of MOtor Vehicle Emission Simulator (MOVES)
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EPA's MOtor Vehicle Emission Simulator (MOVES) is a state-of-the-science emission modeling system that estimates emissions for mobile sources at the national, county, and project level for criteria air pollutants, greenhouse gases, and air toxics.
- It incorporates significant improvements in calculating onroad and nonroad equipment emissions.
- It does not significantly change the criteria pollutant emissions results of MOVES2014, and therefore is not considered a new model for SIP and transportation conformity purposes.
- MOVES2014a Questions and Answers (PDF)(6 pp, 527 K, EPA-420-F-15-046, November 2015) highlights the differences between MOVES2014a and earlier versions of MOVES, and explains EPA policy on using MOVES2014a in State Implementation Plans and Transportation Conformity Analyses.
- MOVES2014a User Guide (PDF)(266 pp, 11 M, EPA-420-B-15-095, November 2015) walks users through various MOVES examples, and provides an overview of menu items and options.
- MOVES2014a User Interface Reference Manual (PDF)(59 pp, 605 K, EPA-420-B-16-085, November 2016) provides details on using the MOVES interface, commands and menu options.
- MOVES2014a Software Design Reference Manual (PDF)(112 pp, 1 M, EPA-420-B-15-096, November 2015) provides background on configuring and installing MOVES and describes MOVES code structure.
- Download the November 2016 Update to MOVES2014a (EXE)(62 MB) : The November 2016 Update to MOVES2014a fixes issues with the MOVES Fuel Wizard and updates emission rates for dioxins and furans. EPA has discovered an error in the Fuel Wizard that, in some cases, can result in incorrect adjustments to fuel formulations when users change the ethanol content of the fuel. The effects of these adjustments on emissions are small, but we recommend that MOVES users who plan to use the Fuel Wizard install and use this update to MOVES2014a for all future work.
- After downloading the setup file, run MOVES2014a-Setup-20161117.exe and follow the on-screen instructions to complete the MOVES2014a installation.
- NOTE: More information on which fuel scenarios were affected by the error and how the fix impacts a sample county-level emissions inventory are documented in the Fuel Supply Report on the MOVES Technical Reports webpage (/moves/moves-technical-reports). Details on using the Fuel Wizard can be found in the MOVES2014a User Interface Reference Manual (PDF)(59 pp, 605 K, EPA-420-B-16-085, November 2016).
- Federal Register Notice of Availability: Official Release of MOVES2014 Motor Vehicle Emissions Model for Emissions Inventories in SIPs and Transportation Conformity (PDF)(5 pp, 230 K, published October 7, 2014): This notice approves the use of MOVES2014 and MOVES2014a in official SIP submissions and starts a two-year grace period before MOVES2014 and MOVES2014a are required to be used in new regional emissions analyses for transportation conformity determinations outside of California.
- Policy Guidance on the Use of MOVES2014 and Subsequent Minor Revisions for State Implementation Plan Development, Transportation Conformity, and Other Purposes (PDF)(18 pp, 230 K, EPA-420-B-14-008, July 2014): How and when to use the MOVES2014 and subsequent minor revisions, including MOVES2014a, for SIP development, transportation conformity, general conformity, and other purposes.
- MOVES2014 and 2014a Technical Guidance: Using MOVES to Prepare Emission Inventories for State Implementation Plans and Transportation Conformity (PDF)(63 pp, 1.0 MB, EPA-420-B-15-093, November 2015): Guidance on appropriate input assumptions and sources of data for the use of MOVES2014 and MOVES2014a in SIP submissions and regional emissions analyses for transportation conformity purposes.
- See State and Local Transportation Resources for further information on transportation conformity and SIPs.