HLDT—Heavy light-duty truck. Includes only those trucks over 6000 pounds GVWR (LDT3s and LDT4s).
HLDT/MDPV—Heavy light-duty trucks and medium-duty passenger vehicles.
HPLC—High-pressure liquid chromatography.
IBP—Initial boiling point.
IUVP—In-Use Verification Program.
LDT1—Light-duty truck 1.
LDT2—Light-duty truck 2.
LDT3—Light-duty truck 3.
LDT4—Light-duty truck 4.
LDV/LLDT—Light-duty vehicles and light light-duty trucks. Includes only those trucks rated at 6000 pounds GVWR or less (LDT1s and LDT2s).
LDV/T—Light-duty vehicles and light-duty trucks. This term is used collectively to include, or to show that a provision applies to, all light-duty vehicles and all categories of light-duty trucks, i.e.
LDT1, LDT2, LDT3 and LDT4.
LEV—Low Emission Vehicle.
LPG—Liquefied Petroleum Gas.
MDPV—Medium-duty passenger vehicle.
mph—Miles per hour.
NLEV—Refers to the National Low Emission Vehicle Program. Regulations governing this program are found at subpart R of this part.