Vehicle and Engine Certification

Light-Duty Evaporative/Refueling Families: Family Naming Conventions

To determine Positions 1-4 of your Evaporative/Refueling Family name, see:

Use the table below to create Positions 5-12:

Location in Family Name Code/Value Description or Instructions
Position 5 R Industry sector code for "Light-Duty Evaporative/Refueling Families"
Positions 6-9 XXXX Total capacity in grams of all canisters
(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.