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 Enhanced Electric and Fuel Cell Vehicle Certification Clean Truck Check — Heavy-Duty Inspection and Maintenance (HD I/M) Regulation: Freight Contractor, Broker, and Applicable Freight Facility Requirements Clean Truck Check Reporting Database (CTC-VIS) Guidance
