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Review of the 21st Century Truck Partnership
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