State and Federal Standards for Mobile-Source Emissions (2006)
Chapter: Abbreviations
Abbreviations
A/F
air-to-fuel ratio
AAM
Association of Automobile Manufacturers
ACP
alternative compliance plan
AQMD
Air Quality Management District
ARB
Air Resources Board in California (same as CARB)
ASTM
American Society for Testing Materials
AT-PZEV
advanced-technology partial zero-emission vehicle
CAA
Clean Air Act
CAFE
corporate average fuel economy
CARB
California Air Resources Board
CIDI
compression ignition direct injection
CNG
compressed natural gas
CO
carbon monoxide
CO2
carbon dioxide
COHb
carboxyhemoglobin
DOE
U.S. Department of Energy
EGR
exhaust gas recirculation
EMFAC
emissions model used by CARB for mobile sources
EPA
U.S. Environmental Protection Agency
EV
electric vehicle
GVW
gross vehicle weight
HAPs
hazardous air pollutants
HC
hydrocarbon (see Appendix B for definition of various terms used for HCs)
HCCI
homogeneous charge compression ignition
HDV
heavy-duty vehicle
HEW
U.S. Department of Health, Education and Welfare
IC
internal combustion
LACPCD
Los Angeles County Air Pollution Control District
LDT
light-duty truck
LEV
low-emission vehicle
LPG
liquified petroleum gas
LVW
loaded vehicle weight
MDPV
medium-duty passenger vehicle
MDT
medium-duty truck
MDV
medium-duty vehicle
MECA
Manufacturers of Emissions Control Association
MOA
memorandum of agreement
MOBILE6
emissions model used by EPA for mobile sources
MVPCB
Motor Vehicle Pollution Control Board
N2
diatomic nitrogen
NAAQS
National Ambient Air Quality Standards
NAPCA
National Air Pollution Control Administration
NLEV
National Low Emission Vehicle Program
NMHC
nonmethane hydrocarbon (see Appendix B for definition of various terms used for HCs)
NMOG
nonmethane organic gas (see Appendix B for definition of various terms used for HCs)
NO2
nitrogen dioxide
NOx
oxides of nitrogen gases
NRC
National Research Council
O2
diatomic oxygen
O3
ozone
OBD
onboard diagnostics
OTC
Ozone Transport Commission
PAH
polycyclic aromatic hydrocarbon
PC
passenger car
PCV
positive crankcase ventilation
PM
particulate matter
PZEV
partial zero-emission vehicle
R&D
research and development
RIA
regulatory impact assessment
RHC
reactive hydrocarbon (see Appendix B for definition of various terms used for HCs)
ROG
reactive organic gas (see Appendix B for definition of various terms used for HCs)
SCAQMD
South Coast Air Quality Management District
SCR
selective catalytic reduction
SI
spark ignition
SIP
state implementation plan
SORE
small off-road engine
SULEV
super ultra-low-emission vehicle
TLEV
transitional low-emission vehicle
UAM
urban airshed model
UEGO
universal exhaust gas oxygen (sensor)
ULEV
ultra-low-emission vehicle
VOC
volatile organic compound
ZEV
zero-emission vehicle
