§ 1037.105 CO2 emission standards for vocational vehicles.

(a) The standards of this section apply for the following vehicles:

(1) Heavy-duty vehicles at or below 14,000 pounds GVWR that are excluded from the standards in 40 CFR 86.1819 or that use engines certified under § 1037.150(m).

(2) Vehicles above 14,000 pounds GVWR and at or below 26,000 pounds GVWR, but not certified to the vehicle standards in 40 CFR 86.1819.

(3) Vehicles above 26,000 pounds GVWR that are not tractors.

(4) Vocational tractors.

(b) CO₂ standards in this paragraph (b) apply based on modeling and testing as specified in subpart F of this part. The provisions of § 1037.241 specify how to comply with these standards. Standards differ based on engine cycle, vehicle size, and intended vehicle duty cycle. See § 1037.510(c) to determine which duty cycle applies.

(1) Model year 2027 and later vehicles are subject to CO₂ standards corresponding to the selected subcategories as shown in the following table:

Table 1 of § 1037.105—Phase 2 CO₂ Standards for Model Year 2027 and Later Vocational Vehicles

[g/ton-mile]

(2) Model year 2024 through 2026 vehicles are subject to CO₂ standards corresponding to the selected subcategories as shown in the following table:

Table 2 of § 1037.105—Phase 2 CO₂ Standards for Model Year 2024 Through 2026 Vocational Vehicles

[g/ton-mile]

(3) Model year 2021 Through 2023 vehicles are subject to CO₂ standards corresponding to the selected subcategories as shown in the following table: