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MOVES4-RC2

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@danielbizercox danielbizercox released this 13 Jun 14:09
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MOVES4-RC2
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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. MOVES is available under EPA's Open-Source Software policy.

This is a draft version of MOVES4 called the MOVES4-ReleaseCandidate2. We plan to release the official MOVES4 model (MOVES4.0.0) later this year, along with full documentation and guidance on how MOVES4 should be used. The official MOVES4.0.0 may differ from the results of this release candidate. Results from this version may not be used in work for state implementation plans, conformity determinations, or for any other regulatory purpose.

We are releasing the MOVES4 release candidate for testing purposes and for modelers to become familiar with functional changes between MOVES3 and MOVES4 before MOVES4.0.0 is released.

The release candidate version of MOVES4 incorporates several important updates, including:

  • The emission impacts of the EPA heavy-duty low NOx rule for model years 2027 and later and the light-duty greenhouse gas rule for model years 2023 and later.
  • The ability to model of heavy-duty battery-electric and fuel-cell vehicles, as well as CNG long-haul combination trucks.
  • Improved modeling of light-duty electric vehicles.
  • The latest data and forecasts on vehicle populations (including electric vehicle fractions), travel activity, and emission rates, as well as updated fuel supply information at the county level.
  • The latest data on ammonia emission rates for light-duty and heavy-duty vehicles.
  • A number of other limited-impact updates to specific emissions rates and adjustments.
  • New tools to make the model easier to use and updates for compatibility with newer software

Until the official version of MOVES4 is available, MOVES3.1 (at GitHub and https://www.epa.gov/moves/latest-version-motor-vehicle-emission-simulator-moves) is the latest version of MOVES for regulatory purposes. For more information, see Policy Guidance on the Use of MOVES3 for State Implementation Plan Development, Transportation Conformity, General Conformity, and Other Purposes (EPA-420-B-20-044).

For additional information on MOVES, visit EPA's MOVES website.

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