LDT light-duty truck

LDT1 light-duty truck 1

LEV Low Emission Vehicle

LHDDE light heavy-duty diesel engine

LP low pressure

LSD low sulfur diesel

LTC low-temperature combustion

LVW loaded vehicle weight

MBRC Miles Between Road Call

MDPV medium-duty passenger vehicle

MDV medium-duty vehicle

MET More Electric Truck

MFC Model Fund Consortium

MHDDE medium heavy-duty diesel engine

mi miles

mpg miles per gallon

mph miles per hour

MYPP Multi-Year Program Plan

N2O nitrous oxides

NAC NOx absorber catalyst

NHTSA National Highway Traffic Safety Administration

NMHC nonmethane hydrocarbon

NMOG nonmethane organic gas

NOx oxides of nitrogen

NPBF Non-Petroleum Based Fuels

NRC National Research Council

NREL National Renewable Energy Laboratory

NTE Not-to-Exceed

NTP National Toxicology Program

OBD on-board diagnostic

OECD Organization for Economic Cooperation and Development

OEM original equipment manufacturer

OHVT Office of Heavy Vehicles Technology

ORNL Oak Ridge National Laboratory

PART Program Assessment Rating Tool

PC passenger car

PCCI premixed charge compression ignition

PHEV plug-in hybrid electric vehicle

PM particulate matter

PM2.5 particulate matter smaller than 2.5 micrometers in diameter (also PM10)

PNGV Partnership for a New Generation of Vehicles

PSAT Powertrain Systems Analysis Toolkit

R&D research and development

RFS Renewable Fuels Standard

rpm revolutions per minute

SAE Society of Automotive Engineers

SCR Selective Catalytic Reduction

SET Supplemental Emission Test

SI spark-ignited

SO2 sulfur dioxide

SULEV Super Ultra Low Emission Vehicle

SUV sport utility vehicle

TACOM U.S. Army Tank-Automotive Command

TARDEC Tank-Automotive Research, Development and Engineering Center

ULEV Ultra Low Emission Vehicle

ULSD ultra-low sulfur diesel

USCAR U.S. Council for Automotive Research

UTQGS Uniform Tire Quality Grading System

VIUS Vehicle Inventory and Use Survey

Wh/kg watt hours per kilogram

WHR waste heat recovery

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