VECI Acronym Definitions

VECI ACRONYM DEFINITIONS

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

CI: Cylinder Injection

EPA: Environmental Protection Agency

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.

Tier 2: Federal regulations beginning in the 2004 model year.

LEV: Low Emission Vehicle

LEV II: California regulations beginning in the 2004 model year.

ZEV: Zero Emission Vehicle

PZEV: Partially Zero Emission Vehicle

ULEV: Ultra Low Emission Vehicle

ILEV: Inherently Low Emission Vehicle