Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la
If it fails: lemon-manuals.org.ua

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VECI Acronym Definitions

VECI ACRONYM DEFINITIONS

ALVW: Adjusted Loaded Vehicle Weight, curb weight plus GVWR divided by 2.

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

EPA: Environmental Protection Agency

EVAP: Evaporative Emissions

GVW: Gross Vehicle Weight

GVWR: Gross Vehicle Weight Rating, curb weight plus payload.

LDV: Light Duty Vehicle, generally passenger cars and light trucks under 6,000 pounds GVWR.

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

MY: Model Year

OBD: On Board Diagnostic

ORVR: On-Board Refueling Vapor Recovery

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 with 1993 model year and Federal regulations beginning with 1994 model year.

LEV: Low Emission Vehicle

ZEV: Zero Emission Vehicle

PZEV: Partial Zero Emission Vehicle

ULEV: Ultra Low Emission Vehicle

ILEV: Inherently Low Emission Vehicle