Heavy-Duty Hybrid Electric Vehicle Certification Procedures
This page last reviewed December 5, 2013
California Interim Certification Procedures for 2004 and Subsequent Model Hybrid-Electric Vehicles in the Urban Bus and Heavy-Duty Vehicle Classes (interim procedure). This interim procedure was adopted in conjunction with modifications to the Public Transit Bus Fleet Rule to reflect advances in technology that could not be captured in ARB’s existing heavy-duty certification procedures.
Since then, heavy-duty hybrid vehicle technology has become more commercialized and expanded into more sectors of the heavy-duty vehicle market. Because of this commercialization and expansion, coupled with the need to better quantify emission reductions from existing and future hybrid vehicles, ARB believes that updates to the existing interim procedure are warranted.
Heavy-Duty Certification Requirements in order to legally sell heavy-duty engines in California. The interim procedure is designed for heavy-duty hybrid-electric vehicle manufacturers seeking voluntary vehicle-based (as opposed to engine-based) certification. The interim procedure is based on a modified version of the Society of Automotive Engineers (SAE) Recommended Practice SAE J2711. This protocol was developed to test the emissions of heavy-duty hybrid-electric vehicles using a chassis dynamometer. The ARB certification value for a heavy-duty hybrid-electric vehicle is determined through calculations using chassis dynamometer test results and engine certification values for both the hybrid-electric vehicle and a comparable conventional drivetrain vehicle.
ARB staff is evaluating the current interim certification procedure and plans to propose amendments for the Board's consideration in late 2013. These amendments will focus on the chassis dynamometer testing portion of the overall certification process. Staff will hold workshops and working groups to solicit public comment on the proposed amendments; meeting announcements will be posted on this webpage and sent via e-mail. Please consider joining our e-mail list to receive meeting announcements and related information.
Posted December 5, 2013:
Public hearing announced. The Air Resources Board will conduct a public hearing on December 12, 2013, in Sacramento, to consider five heavy-duty vehicle related proposals, including adopting the amendments to the Heavy-Duty Hybrid-Electric and Other Hybrid Vehicles Certification Procedures. The public hearing notice and staff report have been posted on the draft proposed regulations web page.
|Date/Time||Description||Agenda or Hand-outs|
|March 19, 2013 / 10:00 a.m.||March 2013 Working Group Conference Call for Heavy-Duty Hybrid Vehicle Certification Procedures Amendments||Invitation
|Feb. 26, 2013 / 10:00 a.m.||February 2013 Working Group Conference Call for Heavy-Duty Hybrid Vehicle Certification Procedures Amendments||Invitation
|August 30, 2012||2nd Public Workshop for Amendments to the California Interim Certification Procedures for 2004 and Subsequent Model Hybrid-Electric Vehicles in the Urban Bus and Heavy-Duty Vehicle Classes||Notice
|February 3, 2010||1st Public Workshop for Amendments to the California Interim Certification Procedures for 2004 and Subsequent Model Hybrid-Electric Vehicles in the Urban Bus and Heavy-Duty Vehicle Classes||Notice
- The Hybrid Truck Testing is the U.S. Department of Energy National Renewable Energy Laboratory (NREL) study to improve the performance of commercial hybrid vehicles and help estimate the real world benefits of advanced hybrid truck technology in California.
- The Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project provides vouchers to help California fleets purchase hybrid and zero-emission trucks and buses.
- Manufacturers must follow ARB's Heavy-Duty Certification Requirements in order to legally sell vehicles in California. Manufacturers can find other useful information on the Mobile Sources Portal for Manufacturers.
- Light-Duty and Medium-Duty Hybrid Electric Vehicles have separate testing and certification requirements.
- Fleet owners can use ARB's TruckStop website to learn more about ARB regulations that affect their fleet and incentives programs for which they may be eligible.
questions, please contact:
Innovative Strategies Branch, MSCD
at (916) 327-2939