40 CFR 86.1863-07 - Optional chassis certification for diesel vehicles.
(a) A manufacturer may optionally certify heavy-duty diesel vehicles 14,000 pounds GVWR or less to the standards specified in § 86.1816. Such vehicles must meet all the requirements of this subpart S that are applicable to Otto-cycle vehicles, except for evaporative, refueling, and OBD requirements where the diesel-specific OBD requirements would apply.
(c) Diesel vehicles certified under this section may be tested using the test fuels, sampling systems, or analytical systems specified for diesel engines in subpart N of this part or in 40 CFR part 1065.
(e) The provisions of § 86.004-40 apply to the engines in vehicles certified under this section.
(i) Non-petroleum fueled complete vehicles subject to the standards and requirements of this part under § 86.016-01(d)(5) are subject to the provisions of this section applicable to diesel-fueled heavy-duty vehicles.