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  2. Regulations for Emissions from Vehicles and Engines

Lumped Parameter Model (LPM) for Light-Duty Vehicles

Related Topics
  • Advanced Light-Duty Powertrain and Hybrid Analysis (ALPHA) Tool
  • Draft Technical Assessment Report: Midterm Evaluation of Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards for Model Years 2022-2025 (pdf) (34.9 MB, July 2016, EPA-420-D-16-900)
  • Final Rule for Model Year 2017 and Later Light-Duty Vehicle Greenhouse Gas Emissions and Corporate Average Fuel Economy Standards

EPA’s Lumped Parameter Model (LPM) is a free, desktop computer application that estimates the effectiveness (i.e., carbon reduction) of various technology combinations, or “packages,” in a manner that accounts for synergies between technologies.

LPM v3.10

EPA used LPM V3.10 to support the 2016 Draft Technical Assessment Report.
  • Download the executable version of LPM v3.10 (.exe) (exe) (144.5 KB)

LPM v2.12

EPA used LPM V2.12 to support the 2017-2025 Final Light-Duty Vehicle Greenhouse Gas Rulemaking.
  • Download the executable version of LPM v2.12 (.exe) (exe) (93.5 KB)

Regulations for Emissions from Vehicles and Engines

  • Onroad
    • Passenger Vehicles
    • Commercial Trucks & Buses
    • Motorcycles
  • Nonroad
    • Aircraft
    • Heavy Equipment
    • Locomotives
    • Marine
    • Recreational Vehicles
    • Small Equipment & Tools
  • Greenhouse Gas
Contact Us About Regulations for Emissions from Vehicles and Engines
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 22, 2025
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