Heavy-Duty Engine and Vehicle Omnibus Regulation Amendments

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This page last reviewed May 31, 2024

Proposed Amendments to the Heavy-Duty Engine and Vehicle Omnibus Regulation

Hearing Date(s)
Public Comments Received
Final Approval / OAL Action

OAL approved the rulemaking and filed with Secretary of State on May 31, 2024. The effective date is May 31, 2024.

Attachment A-1: Final Regulation Order
Alternate Format to the Final Regulation Order: Attachment A-2  ~Microsoft Word document version of document posted directly above~
Attachment B-1: Final Modifications to the Diesel Engine Test Procedures
Alternate Format to the Diesel Engine Test Procedures: Attachment B-2  ~Microsoft Word document version of document posted directly above~
Attachment C-1: Final Modifications to the Otto-Cycle Engine Test Procedures
Alternate Format to the Otto-Cycle Engine Test Procedures: Attachment C-2  ~Microsoft Word document version of document posted directly above~
Addendum to the Final Statement of Reasons
Updated Informative Digest
Adopted Regulations and Materials Submitted to OAL

The final rulemaking package was submitted to OAL on April 18, 2024. OAL has until May 31, 2024, to make a final determination.

Attachment A-1: Final Regulation Order  (See Revised Above)
Alternate Format to the Final Regulation Order: Attachment A-2  ~Microsoft Word document version of document posted directly above (See Revised Above)~
Attachment B-1: Final Modifications to the Diesel Engine Test Procedures  (See Revised Above)
Alternate Format to the Diesel Engine Test Procedures: Attachment B-2  ~Microsoft Word document version of document posted directly above (See Revised Above)~
Attachment C-1: Final Modifications to the Otto-Cycle Engine Test Procedures  (See Revised Above)
Alternate Format to the Otto-Cycle Engine Test Procedures: Attachment C-2  ~Microsoft Word document version of document posted directly above (See Revised Above)~
Final Statement of Reasons
Updated Informative Digest  (See Revised Above)
Request for an Early Effective Date
Notice of Exemption

On December 28, 2023, CARB approved the Executive Order adopting the Proposed Amendments to the Heavy-Duty Engine and Vehicle Omnibus Regulation. CARB will file the final rulemaking documents with OAL (including the FSOR) when those documents are ready for submittal.

Posted
Executive Order
Hearing Action and Supplemental 15 Day Notices
Posted
Notice of Public Availability of Modified Text  (Deadline to Comment: December 21, 2023)
Appendix A-1: Proposed 15-Day Changes to Proposed Regulation Order  (15-Day Changes Available for Comment)
Appendix A-2  ~Alternate Format to Appendix A-1~
Appendix A-3  ~Alternate Version~
Appendix B-1: Proposed 15-Day Changes to Proposed Modifications to the Diesel Engine Test Procedures  (15-Day Changes Available for Comment)
Appendix B-2  ~Alternate Format to Appendix B-1~
Appendix B-3  ~Alternate Version~
Appendix C-1: Proposed 15-Day Changes to the Otto-Cycle Engine Test Procedures  (15-Day Changes Available for Comment)
Appendix C-2  ~Alternate Format to Appendix C-1~
Public Hearing Notice and Related Material
Posted
Notice of Executive Officer Hearing
Posted
Notice of Public Hearing  (Deadline to Submit Public Comments: September 18, 2023)
Staff Report: Initial Statement of Reasons (ISOR)
Appendix A-1: Proposed Regulation Order
Appendix A-2: Proposed Regulation Order  ~Alternative format to Appendix A-1~
Appendix B-1: Proposed Modifications to the Diesel Engine Test Procedures
Appendix B-2: Proposed Modifications to the Diesel Engine Test Procedures  ~Alternative format to Appendix B-1~
Appendix C: Purpose and Rationale for Each Regulatory Provision
More Information

Accessibility

Consistent with California Government Code section 7296.2, documents posted to this webpage may be made available in an alternate format or another language.  Disability-related reasonable accommodations may also be requested. If you are experiencing difficulty accessing these documents or would like an accommodation, an alternate format, or a different language, please contact Bradley Bechtold at (279) 208-7266 or Chris Hopkins at (279) 208-7347.