§ 1037.230 Vehicle families, sub-families, and configurations.

(a) For purposes of certifying your vehicles to greenhouse gas standards, divide your product line into families of vehicles based on regulatory subcategories as specified in this section. Subcategories are specified using terms defined in § 1037.801. Your vehicle family is limited to a single model year.

(1) Apply subcategories for vocational vehicles and vocational tractors as shown in Table 1 of this section. This involves 15 separate subcategories for Phase 2 vehicles to account for engine characteristics, GVWR, and the selection of duty cycle for vocational vehicles as specified in § 1037.510; vehicles may additionally fall into one of the subcategories defined by the custom-chassis standards in § 1037.105(h). Divide Phase 1 vehicles into three GVWR-based vehicle service classes as shown in Table 1 of this section, disregarding additional specified characteristics. Table 1 follows:

Table 1 of § 1037.230—Vocational Vehicle Subcategories

(2) Apply subcategories for tractors (other than vocational tractors) as shown in Table 2 of this section.