On-Road Heavy-Duty GHG Vehicle Certification Program: California Test Procedures GHG Vehicles 2014+ (Phase 1) California Greenhouse Gas Exhaust Emission Standards and Test Procedures for 2014 and Subsequent Model Year Heavy‑Duty Vehicles Categories Topics On-Road Heavy-Duty Vehicles Tipo Information This document contains the majority of the requirements necessary for Phase 1 greenhouse gas certification of a heavy-duty vehicle for sale in California. Related Resources On-Road Heavy-Duty Voucher Incentive Program (VIP) Guidelines Notice of Updates to the Carl Moyer Memorial Air Quality Standards Attainment Program Guidelines for the On-Road Heavy-Duty Voucher Incentive Program and Infrastructure Comment Letter on the Proposed Advanced Clean Fleets Regulation Submitted by the Otay Mesa Chamber of Commerce
