Agency

Illinois Environmental Protection Agency

ALVW

adjusted loaded vehicle weight

CAA

Clean Air Act as amended in 1990

CO

carbon monoxide

g/bhp-hr

grams per brakehorsepower-hour

g/mi

grams per mile

GVWR

gross vehicle weight rating

HCHO

formaldehyde

HDV

heavy-duty vehicle

ILEV

inherently low emission vehicle

kg

kilograms

lbs

pounds

LDT

light-duty truck

LDV

light-duty vehicle

LEV

low emission vehicle

LVW

loaded vehicle weight

MY

model year

NMOG

non-methane organic gas

NMHC

non-methane hydrocarbon

NO_x

oxides of nitrogen

PM

particulate matter

THC

total hydrocarbon

ULEV

ultra low emission vehicle

VIN

vehicle identification number

ZEV

zero emission vehicle