Section 2 Safety & Compliance These statements are just part of the changes to the new certification regulation. Please refer to the Feb 15, 2005 final rule for all of the details related to this regulation. You can contact NTEA Technical Services Department at 1-800-441-NTEA for a copy of the final rule (DocID 101760). For Canadian final stage manufacturers see: http://www.gazette.gc.ca/archives/p2/2002/2002-02-13/html/sor-dors55-eng.html; and http://www. tc. gc. ca/acts-regulations/regulations/crc-c1038/menu. htm for the regulations. Or contact: Transport Canada Tower C, Place de Ville, 330 Sparks Street Ottawa, Ontario K1A 0N5 (613) 990-2309 TTY:
1-888-675-6863 Noise and Emissions Requirements NOTE 2010 Automotive engines have been tested and EPA/CARB certified with a complex inte- grated system. This system is comprised of several emissions control devices including, but not limited to, a Diesel Particulate filter (DPF) and a Selective Catalyst Reduction (SCR) system. The body builder must not modify or relocate any devices included in the emissions system. Doing so may result in the voiding of all warranties and the occurrence of an emissions noncompliance event that may be considered tampering and punishable by the assessment of penalties by the EPA and ARB as well as the need for remedial measures.
Modification of the emissions system can only be done with the preapproval of Cummins and/or Kenworth. Body builders’ first point of contact concerning emissions systems modifications will be Kenworth. It is possible to relocate the DEF tank, however the relocation requirements need to be followed. Any variance from the relocation requirements may cause the emissions control components/systems to operate improperly potentially resulting in engine de-rate. See page 4-3 for relocation requirements. NOTE Some 2010 engine emissions certified vehicles will be equipped with an On-Board Diagnostics (OBD) system.
The OBD system is designed to detect malfunctions of any engine or vehicle component that may increase exhaust emissions or interfere with the proper performance of the OBD system itself. The OBD system consists of computer program on one or more of the vehicle’s Electronic Control Units (ECUs). This program uses information from the control system and from additional sensors to detect malfunctions. When a malfunction is detected, information is stored in the ECU(s) for diagnostic purposes. A Malfunction Indicator Light (MIL) is illuminated in the dash to alert the driver of the need for service of an emission-related component or system.
To ensure compliance to emissions regulations, the final configuration of certain features of the completed vehicle must meet specific requirements. This section describes requirements relevant for only the most common or critical modifications done by body builders. For a complete description of acceptable modifications, see the application guidance available from the manufacturer of the engine installed in the chassis. 2-3 12/11