On-Road Heavy-Duty GHG Vehicle Certification Program: California Test Procedures ZEP 2021+ Proposed California Standards And Test Procedures For New 2021 And Subsequent Model Heavy-Duty Zero-Emission Powertrains Categories Topics On-Road Heavy-Duty Vehicles Type Information This document contains the requirements necessary for criteria pollutant and greenhouse gas certification of a heavy-duty electric or hydrogen fuel-cell powertrain for sale in California. Documents California Standards And Test Procedures For New 2021 And Subsequent Model Heavy-Duty Zero-Emission Powertrains ADA__CALIFORNIA STANDARDS AND TEST PROCEDURES FOR NEW 2021 AND SUBSEQUENT MODEL HEAVY-DUTY ZERO-EMISSION POWERTRAINS.PDF · 255 KB Related Resources Clean Truck Check (Heavy-Duty Inspection and Maintenance (HD I/M) Regulation) Question and Answer 11/3/2023 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
