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 Categorías 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 Certification Program: California Test Procedures Fill Pipes 2015+ (Amended: May 31, 2019) HD/OFCI Production Report Templates Enhanced Electric and Fuel Cell Vehicle Certification
