Heavy-Duty Certification Program
This page last reviewed September 27, 2016
On-Road Heavy-Duty Vehicle Program page.
The regulation section Heavy-Duty Electric Vehicles and Non-Combustion Hybrid Vehicles has been updated.
The document "Information Required for Review of Requests for Approvals of Heavy-Duty Electric Vehicles and Non-Combustion Hybrid Vehicles" ( PDF - 86K ) has been updated.
A manufacturer wishing to certify an engine or vehicle must demonstrate that the emission control systems are durable, and that the exhaust emissions and evaporative emissions, as applicable, comply with the regulatory standards for the duration of the required useful life of the product. This demonstration is accomplished through durability and certification testing of the prototype certification engine(s) or vehicle(s), or through alternate means in limited circumstances as allowed by regulation. Compliance with on-board diagnostics, anti-tampering, fuel tank fill-pipe and openings, crankcase emissions, etc., as applicable, must be demonstrated also. An application for certification must be submitted to, and approved by, the Air Resources Board (ARB).
Production engines and vehicles must be identical in all material respects to the certification engine(s) and vehicle(s) for which the certification was granted. All emissions-related production running changes during production and field fixes must be approved. Production engines and vehicles must be properly labeled and the related emission control systems warranted for the emission warranty period specified by regulation. New and customer-owned production engines and vehicles are subject to compliance testing (by either the manufacturer or ARB) and warranty repairs reporting by the manufacturers, either of which can result in remedial actions.
Certification is granted only to the manufacturer of the engines and vehicles who controls the production specifications in order to ensure compliance of all production engines and vehicles. Certification can be granted to an importer only if the importer demonstrates that it has control of the production specifications. As an example, this demonstration can be effected by a contractual agreement between the original manufacturer and importer which gives the importer the sole authority to approve any changes to the specifications for production engines and vehicles. Importers lacking this control are subject to direct-import (a.k.a. gray-market) certification.
- Letter of Intent: A physical letter which states the intent of the manufacturer to certify with ARB and presents an overview of what will be certified.
- Electronic Signatures Letter: A physical letter which includes the names and actual signatures of persons authorized to sign documents uploaded electronically to the Document Management System (DMS).
Please see MAC 2007-01 ( PDF - 88K ) for more information
- EPA Manufacturer Code: Manufacturers wishing to certify engines or evaporative families must register with EPA as a manufacturer and receive an EPA manufacturer code. ARB requires manufacturers of heavy-duty electric vehicles or heavy-duty non-combustion hybrid vehicles to obtain an EPA manufacturer code also.
- Document Management System (DMS): Email a completed DMS users spreadsheet ( XLS - 59K ), which lists the persons to be granted access to the online DMS, to Kimberly Pryor, Section Manager, or James Pang of the Compression-Ignition and Heavy-Duty Certification Section. More information about ARB's DMS is available online on the OpenDMS webpage.
- Letter of Authorization: A physical letter on the manufacturer's letterhead which authorizes specific consultant(s) to communicate with ARB on the manufacturer's behalf
Manufacturers who have registered previously must notify ARB whenever there are any changes in the preceding items. In particular, when persons' permission to access DMS on behalf of a manufacturer is discontinued (e.g. assignment change or leaving the company), an updated version of the DMS users spreadsheet must be submitted to ARB so that user accounts can be deactivated. This process also applies to those persons listed on the electronic signature letter.
Presently, all applications are submitted as electronic copies of paper documents via the DMS. ARB is currently developing an electronic application submission system which will replace the current method. For more information, please visit the E-Cert webpage.
For engine certification ARB requires a PDF printout of the FileMaker Pro templates created by EPA ( Family Information Form, Test Information Form, and Supplemental Test Information Form: FP7 - 104K, Engine Models Summary: FP7 - 732K, Parts Summary: FP7 - 144K).
For evaporative certification ARB encourages use of the "Large Engine Evaporative Emission Form" template given by EPA in the document "EPA Large Engine and Evaporative Certification Guidance", Appendix E1 ( PDF - 3580K ).
For GHG vehicle certification please use the EPA document "Greenhouse Gas Certification Template", Form 5900-249 ( XLSX - 162K ).
For additional certification guidance please review the EPA document EPA420-B-98-002, "Certification Guidance for Engines Regulated Under: 40 CFR Part 86 (On-Highway Heavy-Duty Engines) and 40 CFR Part 89 (Nonroad CI Engines)" ( PDF - 311K )
The regulations applicable to an application for certification depend on the engines or vehicles the manufacturer intends to certify, therefore, it is important that a manufacturer be familiar with the various regulations which may apply to their intended products; the most common regulations are listed below to promote this. A gentle warning: ignorance of an applicable regulation is not a valid justification for failure to comply. Also, the Compression Ignition and Heavy-Duty (CIHD) Certification Checklist ( PDF - 32K ) may be used as a list of what information may be required. Further information for specific application types are located in the sections below. ARB encourages manufacturers to annually present an overview, in a meeting or via conference call, what specific products they intend to certify during the model year. These "Certification Preview" meetings allow ARB to give specific feedback and regulatory guidance to manufacturers in a timely manner.
When an application is submitted to DMS, the assigned engineer will do a preliminary review of the material submitted and within 30 days will notify the manufacturer whether there is sufficient information to conduct a full review. If a full review is warranted, then the engineer will review the application and will, within another 30 days, either respond with substantive feedback or submit the application for review by peers and management prior to the Executive Order being signed. These timeframes are the outside limits ARB holds itself to, and experience has shown that nearly all applications are successfully processed is much less time. ARB encourages manufacturers to be responsive to any requests for additional information, additional test data, clarifications, etc. so that applications may be processed in a timely manner. Failure to respond to ARB requests will eventually lead to warnings, and ultimately, rejection of the application.
Please address all communication to the Division Chief of the Emissions Compliance, Automotive Regulations and Science Division. The proper mailing address is:
Emissions Compliance, Automotive Regulations and Science Division
9480 Telstar Avenue, Suite 4
El Monte, CA 91731
It is acceptable to include an 'ATTN' line in the address if you wish the correspondence be routed to a particular person. Otherwise, it will be routed according to internal ARB rules.
"California Exhaust Emission Standards and Test Procedures for 2001 and Subsequent Model Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles", as amended on September 27, 2010 ( PDF - 609K )
Heavy-Duty Otto-Cycle Engines and Vehicles:
"California Exhaust Emission Standards and Test Procedures for 2004 and Subsequent Model Heavy-Duty Otto-Cycle Engines", adopted December 27, 2000, as amended on October 21, 2014 (PDF - 251K )
Heavy-Duty Diesel Engines and Vehicles:
"California Exhaust Emission Standards and Test Procedures for 2004 and Subsequent Model Heavy-Duty Diesel Engines and Vehicles", adopted December 12, 2000, as amended on October 21, 2014 ( PDF - 577K )
"California Interim Certification Procedures for 2004 and Subsequent Model Hybrid-Electric and Other Hybrid Vehicles in the Urban Bus and Heavy-Duty Vehicle Classes", adopted October 24, 2002, as amended on October 21, 2014 ( PDF - 217K )
“California Evaporative Emission Standards and Test Procedures for 2001 and Subsequent Model Motor Vehicles,” adopted August 5, 1999, last amended December 6, 2012. ( PDF - 837K )
California's emission standards for heavy-duty engines and vehicles are contained in California Code of Regulations, Title 13, and the following test procedures, as incorporated by reference. Section numbers of selected topics are listed for your convenience when performing a search on the regulations web page.
"Specifications for Fill Pipes and Openings of Motor Vehicle Fuel Tanks.", adopted March 19, 1976, last amended January 22, 1990.( PDF - 642K )
"Specifications For Fill Pipes And Openings Of 2015 And Subsequent Model Motor Vehicle Fuel Tanks.", adopted March 22, 2012.( PDF - 69K )
MAC 07-01: Policy regarding the use of Electronic Signatures in the Air Resources Board’s (ARB) Document Management System for Certification ( PDF - 88K )
MAC 07-03: Protocol for the Engine Shutdown System on New California Certified Heavy-Duty Diesel Engines for 2008 and Subsequent Model Years ( PDF - 101K )
ARB Heavy-Duty Vehicle SCR Technology Field Evaluation-Second Study
For more information, please read mail-out MSO #2012-02 ( PDF - 47K )
Selective Catalytic Reduction Workshop for New Diesel Engines
Durability Demonstration Workshop for New Diesel Engines
This portion is still under development; check back soon!
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Air Resources Board document management system, OpenDMS
Manager: email Kimberly Pryor or phone (626) 575-6640