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Transportation and Climate

Lumped Parameter Model (LPM) for Light-Duty Vehicles

EPA’s Lumped Parameter Model (LPM) is a free, desktop computer application that estimates the effectiveness (CO2 Reduction) of various technology combinations or “packages,” in a manner that accounts for synergies between technologies.

EPA used LPM V3.10 to support the 2016 Draft Technical Assessment Report.

LPM V3.10 is available for download below.

EPA used LPM V2.12 to support the 2017-2025 Final Light-Duty Vehicle Greenhouse Gas Rulemaking.

LPM V2.12 is available for download below.

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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