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Unique Calibration

The Emissions/CAFE/CO2 Compliance Department is responsible for assigning these calibration numbers. Unique calibration identifications are assigned to cover similar vehicles to differentiate tires, drive configurations, final drive ratios and other calibration - significant factors.

These two characters are chosen by the analyst to provide identifiable information unique to each calibration. For example, using the number 2 to denote a two - valve engine versus using the number 4 to denote a four - valve engine, offers an easily identifiable difference.

Fleet Code 

Certification Region 

Revision Level (not printed on label)