VECI Acronym Definitions

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ALVW-Adjusted Loaded Vehicle Weight, (Curb Weight + GVWR) /2.

Averaging Bank/Trade-Used for Nox Credits on Heavy Duty Trucks Only.

BBL-Barrel.

CALIFORNIA ARB-California Air Resource Board.

CARB-California Air Resource Board.

CARB LEV-Low Emission Vehicle.

CARB TLEV-Transitional Low Emission Vehicle.

CARB ULEV-Ultra Low Emission Vehicle.

CARB ZEV-Zero Emission Vehicle.

CPI-Central Port Injection.

CI-Cylinder Injection.

CNG-Compressed Natural Gas.

EPA-Environmental.

EVAP-Evaporative Emissions.

GVW-Gross Vehicle Weight.

GVWR-Gross Vehicle Weight Rating, Curb weight plus payload.

HHDE-Heavy Heavy Duty Engine.

HHDDE-Heavy Heavy Duty Diesel Engine.

MHDE-Medium Heavy Duty Diesel Engine.

MPI-Multi Port Injection.

LDDT-Light Duty Diesel Truck categories.

LDT-Light Duty Truck (gasoline) categories based on weight as defined in the table.

LDV-Light Duty Vehicle, generally passenger cars and light trucks under 6000 pounds GVWR.

LHDE-Light Heavy Duty Engine (several weight categories).

LVW-Loaded Vehicle Weight, curb weight plus 300 pounds.

MDT-Medium Duty Truck categories based on weight as defined in the table.

MDV-Medium Duty Vehicle.

MHDE-Medium Heavy Duty Engine.

MY-Model Year.

NCP-Non Compliance Penalty.

OBD-On-Board Diagnostic.

ORVR-On-Board Refueling Vapor Recovery.

PC-Passenger Car.

SI-Sequential Injection.

SULEV-Super Ultra Low Emission Vehicle.

Tier 0-California and Federal regulations effective prior to Tier 1 phase in dates.

Tier 1-California regulations beginning in 1993 model year and Federal regulations beginning in 1994 model year.

TBI-Throttle Body Injection.

LEV-Low Emission Vehicle.

ZEV-Zero Emission Vehicle.

ULEV-Ultra Low Emission Vehicle.

ILEV-Inherently Low Emission Vehicle.