CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES > SUBPART S—General Compliance Provisions for Control of Air Pollution From New and In-Use Light-Duty Vehicles, Light-Duty Trucks, and Complete Otto-Cycle Heavy-Duty Vehicles (§86.1801-01 to > 86.1863-07—Optional chassis certification for diesel vehicles.

86.1863-07—Optional chassis certification for diesel vehicles.

(a) A manufacturer may optionally certify heavy-duty diesel vehicles weighing 14,000 pounds GVWR or less, to the standards specified in § 86.1816-08. Such vehicles must meet all requirements of subpart S of this part that are applicable to Otto-cycle vehicles, except for evaporative, refueling, and OBD requirements where the diesel specific OBD requirements would apply.
(b) For OBD, diesel vehicles optionally certified under this section are subject to the OBD requirements of § 86.1806-05 and superseding sections.
(c) Diesel vehicles optionally 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.
(d) Diesel vehicles optionally certified under this section may not be included in any averaging, banking, or trading program.
(e) The provisions of § 86.004-40 apply to the engines in vehicles certified under this section.
(f) Diesel vehicles may be certified under this section to the standards applicable to model year 2008 prior to model year 2008.
(g) Diesel vehicles optionally certified under this section in model years 2007, 2008, or 2009 shall be included in phase-in calculations specified in § 86.007-11(g).

Code of Federal Regulations

[66 FR 5193, Jan. 18, 2001, as amended at 68 FR 35801, June 17, 2003; 74 FR 8423, Feb. 24, 2009]