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 

• 1 - HDGE/Dyno
• 2 - Fast AMA, U.S.
• 3 - ADP, U.S.
• 4 - Not assigned
• 5 - Not assigned
• 6 - Evaporative emissions
• 7 - MACCA
• 8 - On-board diagnostics (OBD)
• 9 - Not assigned

Certification Region 

• 5 - U.S. fifty states
• A - U.S. federal, including altitude, may include Canada and/or Mexico
• B - U.S. California, includes U.S. green states
• C - Canada
• D - China
• E - European Community (Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, United Kingdom)
• F - Extended European Community (E plus Croatia, Czech Republic, Estonia, Hungary, Norway, Poland, Romania, Russian Federation, Slovakia, Slovenia, Switzerland, Yugoslavia)
• G - Gulf Cooperative Council (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, UAE)
• H - Hong Kong
• J - Japan
• K - Korea
• L - Malaysia
• M - Mexico
• N - New Zealand
• P - Australia
• Q - South America (Brazil)
• S - Singapore
• T - Taiwan
• V - Vietnam
• X - Rest of World (ROW)
• Y - Military
• Z - Israel

Revision Level (not printed on label) 

• 91-99 - Hardware calibration levels
• 01-04 - Preliminary levels
• 00 - Job 1 production (initial calibration)
• 05-09 - Pre-job 1 revisions to calibrations
• 10-89 - Post-job 1 revisions to calibrations
• 0B - Durability test level
• BD - On-board diagnostics (OBD) intermediate level (pre-05)