California Air Resources Board

Method to Report

Please submit three files for production reports.

1. Federal production
2. California directed production
3. Vehicle Family Summary (here)

For the 2024 MY California and Federal production reports, please use the template available at:

Templates for Heavy-Duty Vehicle Greenhouse Gas (GHG) Production Volume Reporting and for Exempted Off-Road Vehicles | US EPA

This template is equivalent to the draft EPA template. For the California Production Report, please list the zero-emission powertrain family as the engine family, where applicable.

Please report both Federal and California directed production as per the "CALIFORNIA GREENHOUSE GAS EXHAUST EMISSION STANDARDS AND TEST PROCEDURES FOR 2014 AND SUBSEQUENT MODEL HEAVY-DUTY VEHICLES". These requirements are outlined in the current CARB adopted version of 40 CFR 1037.250 found here:

07. HD Omnibus B-3 Final HDVTPS: California Greenhouse Gas Exhaust Emission Standards and Test Procedures for 2014 and Subsequent Model Heavy-Duty Vehicles

Business Rules, and Data requirements

Please refer to the EPA business rules and data requirements.

Vehicle Family Summary

Please report an additional document, the vehicle family summary. This is a summation of the total production volume for both California and Federal markets.

Please use the linked template

eFile File Naming

Please upload these files to model year of the reported vehicle families. There is a Report Type under the reports document class. Please make sure you are selecting the correct report type and model year.