Heavy-Duty Hybrid Electric Vehicle Certification Procedures
The Heavy-Duty Hybrid Electric Vehicle Interim Certification Procedures provide a protocol for heavy-duty hybrid-electric vehicle manufacturers seeking voluntary vehicle-based (as opposed to engine-based) certification.
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Interim Certification Procedures Regulation
The certification procedures are applicable to new 2004 and subsequent model year heavy-duty (i.e., greater than 14,000 lbs gross vehicle weight rating) hybrid-electric vehicles including hybrid-electric urban buses and other hybrid vehicles.