Vehicle and Engine Certification

Complete Heavy-Duty Highway Vehicles (8,500 to 14,000 Pounds GVWR; Tested on Chassis Dynamometer): Family Naming Conventions

To determine Positions 1-4 of your Test Group name, see:

Use the table below to create Positions 5-12:

Location in Family Name Code/Value Description or Instructions
Position 5 D Industry sector code for "Complete Heavy-Duty Highway Vehicles
(8,500 to 14,000 pounds GVWR; tested on chassis dynamometer)"
Positions 6-9 XX.X or
.XXX
Engine displacement units in liters
(decimal point counts as a digit and each 'X' represents an integer)
Positions 10-12 *** Enter any combination of valid characters in order to provide a unique identification for your family name.