Amendments to the Small Off-Road Engine Regulations: Transition to Zero Emissions

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This page last reviewed August 9, 2022

Proposed Amendments to the Small Off-Road Engine Regulations: Transition to Zero Emissions

Hearing Date(s)

December 9, 2021

Public Comments Received

CARB Submitted a Request for Authorization Action Pursuant to Clean Air Act Section 209(e) for the Small Off-Road Engine Regulations on December 20, 2022

CARB's Request for Authorization Pursuant to Clean Air Act Section 209(e)

Clean Air Act Section 209(e) Authorization Request Support Document

CARB Comment Letter to U.S. EPA Supporting Authorization Request (May 2024)

2023 Implementation Review

The Office of Administrative Law (OAL) has approved the rulemaking and filed with the Secretary of State. The amendments are effective is January 1, 2023.

Addendum to the Final Statement of Reasons

Attachment 1: Final Regulation Order for Amendments to the Small Off-Road Engine Exhaust Emission Regulations, Off-Road Vehicles and Engines Pollution Control Devices

Attachment 2: Final Regulation Order for Amendments to the Small Off-Road Engine Evaporative Emission Regulations, Evaporative Emission Requirements for Off-Road Equipment

Attachment 6: Final Regulation Order Test Procedures for the California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines; Engine Testing Procedures (Part 1054)

The final rulemaking package was submitted to OAL on August 2, 2022. OAL has until September 15, 2022, to make a final determination.

Final Statement of Reasons

Attachment A: OPEI Annex A Comments to CARB’s 45-Day Proposed Amendments to Regulation Orders, Test Procedures, Certification Procedures and Part 1054 and CARB Responses

Attachment B: EMA Exhibit F Comments to CARB’s 45-Day Proposed Amendments to Regulation Orders, Test Procedures, Certification Procedures and Part 1054 and CARB Responses

Attachment C: Honda’s Spreadsheet Comments to CARB’s Proposed Amendments to Regulation Orders, Test Procedures, and Certification Procedures, and CARB Responses

Attachment D: Updated Emissions and Economic Analysis Results for the Proposed Amendments to the Small Off‑Road Engine Regulations

Executive Order

Attachment 1: Final Regulation Order for Amendments to the Small Off-Road Engine Exhaust Emission Regulations, Off-Road Vehicles and Engines Pollution Control Devices ~See Revised Above~

Attachment 2: Final Regulation Order for Amendments to the Small Off-Road Engine Evaporative Emission Regulations, Evaporative Emission Requirements for Off-Road Equipment ~See Revised Above~

Attachment 3: Incorporated Test Procedures for the Amendments to the Small Off-Road Engine Evaporative Emissions Test Procedure, TP-901, Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Fuel Tanks

Attachment 4: Incorporated Test Procedures for the Amendments to Small Off-Road Engine Evaporative Emissions Test Procedure, TP 902, Test Procedure for Determining Evaporative Emissions from Small Off-Road Engines

Attachment 5: Incorporated Certification Procedures for the Amendments to Small Off-Road Engine Evaporative Emission Control System Certification Procedure, CP 902, Certification Procedure for Evaporative Emission Control Systems on Small Off-Road Engines

Attachment 7: Final Regulation Order Test Procedures for the Amendments to the California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines; Engine-Testing Procedures (Part 1065)

Updated Informative Digest

Posted May 27, 2022

Third Notice of Public Availability of Additional Documents and Information
(Deadline to Submit Public Comments: June 13, 2022)

Posted March 30, 2022

Notice of Public Availability of Modified Text and Availability of Additional Documents (Deadline to comment: April 14, 2022)

Attachment A: 15-Day Modifications to the Proposed Amendments to the Small Off-Road Engine Exhaust Emission Regulations, California Code of Regulations, Title 13, Division 3, Chapter 9. Off-Road Vehicles and Engines Pollution Control Devices, Article 1. Small Off-Road Engines

Attachment B:15-Day Modifications to the Proposed Amendments to the Small Off-Road Engine Evaporative Emission Regulations, California Code of Regulations, Title 13, Division 3, Chapter 15. Additional Off-Road Vehicles and Engines Pollution Control Requirements, Article 1. Evaporative Emission Requirements for Off-Road Equipment

Attachment C: 15-Day Modifications to the Proposed Amendments to Small Off-Road Engine
Evaporative Emissions Test Procedure, TP-901, Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Fuel Tanks

Attachment D: 15-Day Modifications to the Proposed Amendments to Small Off-Road Engine
Evaporative Emissions Test Procedure, TP-902, Test Procedure for Determining Evaporative Emissions from Small Off-Road Engines

Attachment E: 15-Day Modifications to the Proposed Amendments to the California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines; Engine-Testing Procedures (Part 1054)

Attachment F: 15-Day Modifications to the Proposed Amendments to the California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines; Engine-Testing Procedures (Part 1065)

Attachment G: Data Tables Resulting from the 15-Day Modifications to the Emissions and Economic Analyses for the Proposed Amendments to the Small Off‑Road Engine Regulations

Posted November 12, 2021

Notice of Public Availability of Documents and Information (Deadline to Submit Public Comments: November 29, 2021)

Attachment 1: Technical Support Document: Potential Increase in Electricity Demand from Added Charging Requirements for Zero-Emission Small Off-Road Equipment under Proposed Amendments to the Small Off-Road Engine Regulations

Resolution 21-28

Notice of Public Hearing ( Public Comment Period: October 15, 2021, - November 29, 2021, or during the Public Hearing on December 9, 2021)

Initial Statement of Reasons

Appendix A: Proposed Amendments to the Small Off-Road Engine Exhaust Emission Regulations, Off Road Vehicles and Engines Pollution Control Devices

Appendix B: Proposed Amendments to the Small Off Road Engine Evaporative Emission Regulations, Evaporative Emission Requirements for Off Road Equipment

Appendix C: TP-901, Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Fuel Tanks

Appendix D: TP 902, Test Procedure for Determining Evaporative Emissions from Small Off Road Engines

Appendix E: CP 902, Certification Procedure for Evaporative Emission Control Systems on Small Off Road Engines

Appendix F: California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off Road Engines; Engine Testing Procedures (Part 1054)

Appendix G: Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines; Engine-Testing Procedures (Part 1065)

Appendix H: Final Environmental Analysis for the Revised Proposed 2016 State Strategy for the State Implementation Plan

Appendix I: Standardized Regulatory Impact Assessment (SRIA)

Appendix J: Pre-Rulemaking Workshop Notices and Email Soliciting Alternatives

More Information

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