Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards - Supporting Testing, Research and Modeling

This page provides links to some of the foundational testing, research, and modeling used to inform the Notice of Proposed Rulemaking titled, Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards.

Emissions Testing

• Heavy-Duty Compression-Ignition Engine Test Program
  • Test Results from EPA Diesel Engine Demonstration (pdf) (945.34 KB, May 3, 2022)
    • Light Heavy-Duty Gasoline Vehicle Evaporative Emissions Test Program
      • Summary (pdf) (EPA-420-S-19-002, December 2019)
      • Final Report (pdf) (EPA-420-R-19-017, December 2019)
    • Emissions Inventory and Air Quality Modeling
      • Air Quality Modeling-Related Data Files (pdf) (133 KB, February 3, 2022)
        • HD2027 BenMAP files NPRM (zip) (May 2022)
        • HD2027 CMAQ emissions_package NPRM (zip) (May 2022)
      • MOVES National Inventory-Related Files (pdf) (141.92 KB, February 15, 2022)
        • HD2027 NPRM MOVES National Inventory Related Files (zip) (May 2022)
      • "Mobile source contributions to ambient ozone and particulate matter in 2025". Margaret Zawacki, et al. September 2018.
      • Population and Activity of Onroad Vehicles in MOVES CTI NPRM
      • Exhaust Emission Rates for Heavy-Duty Onroad Vehicles in MOVES CTI NPRM

      Costs Analyses and Related References

      • Python tool (zip) used to estimate costs associated with the NPRM (February 2022)
      • "Cost Reduction through Learning in Manufacturing Industries and in the Manufacture of Mobile Sources Final Report and Peer Review Report (pdf)" (EPA-420-R-16-018, November 2016)
      • "Heavy Duty Truck Retail Price Equivalent and Indirect Cost Multipliers (PDF)" (July 2010, EPA-420-D-10-100) Draft Report, Prepared for Chi Li, EPA Office of Transportation and Air Quality, RTI Project Number 0211577.003.002
      • Light-Duty Technology Cost Analysis Pilot Study (pdf) (EPA-420-R-09-020, December 2009)
      • Kolwich, G., Steier, A., Kopinski, D., Nelson, B. et al., "Teardown-Based Cost Assessment for Use in Setting Greenhouse Gas Emissions Standards," SAE Int. J. Passeng. Cars - Mech. Syst. 5(2):1059-1072, 2012
      • Heavy-Duty Vehicles Aftertreatment Systems Cost Assessment and associated peer review report (June, 2021)
      • Heavy-Duty Engine Valvetrain Technology Cost Assessment and associated peer review report (January 2021)

      Economic Impacts

      • Analysis of Heavy-Duty Vehicle Sales and associated peer review report (pdf) (May 2021, EPA-420-R-21-013)