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Off-Road Compression-Ignition Engine Regulatory and Certification Documents
This page last reviewed February 4, 2013
Background
This page provides a list of the regulations, test procedures, guidelines, and Manufacturers Advisory Correspondences (MACs) applicable to Off-Road Compression-Ignition Engines, and is primarily for the interest and needs of manufacturers and others that are required to obtain certification from ARB. In addition, certification database and Executive Orders can be accessed on-line by clicking on the links provided below. For public-oriented materials, please visit our Compression-Ignition Engines main program page.- Regulations, Test Procedures, and Policies
- Manufacturers Advisory Correspondences
- Mobile Source Mailouts
- Executive Orders
- FAQ
- Stay Informed
- Related Links
- Contact Us
Announcements 
February 4, 2013: The document 'California Exhaust Emission Standards and Test Procedures for New 2011 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-D', amended October 25, 2012 ( PDF - 248K ) has been added to the Regulations section.
January 24, 2013: The 'Sample Sensor Table', introduced at the Durability Demonstration Workshop for New Diesel Engines held on March 24, 2010, has been revised and the updated version ( XLS - 38K ) included in the Related Links section.
Regulations, Test Procedures, and Policies
California's emission standards for off-road compression-ignition engines are contained in California Code of Regulations, Title 13, and the following test procedures, as incorporated by reference. Section numbers of selected topics are listed for your convenience when performing a search on the regulations web page.
13 CCR §2420-2427 as well as portions of 2111, 2112, 2137, 2139-2141, 2400-2403.
Final Regulation Order, December 7, 2005 ( PDF - 301K )
California Exhaust Emission Standards and Test Procedures for New 2000 and Later Tier 1, Tier 2, and Tier 3 Off-Road Compression-Ignition Engines, Part I-B ( PDF - 83K )
California Exhaust Emission Standards and Test Procedures for New 1996 and Later Tier 1, Tier 2, and Tier 3 Off-Road Compression-Ignition Engines, Part II ( PDF - 16K )
California Exhaust Emission Standards and Test Procedures for New 2008 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-C ( PDF - 197K )
California Exhaust Emission Standards and Test Procedures for New 2011 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-D, amended October 25, 2012 ( PDF - 248K )
Final Regulation Order, December 7, 2005 ( PDF - 301K )
California Exhaust Emission Standards and Test Procedures for New 2000 and Later Tier 1, Tier 2, and Tier 3 Off-Road Compression-Ignition Engines, Part I-B ( PDF - 83K )
California Exhaust Emission Standards and Test Procedures for New 1996 and Later Tier 1, Tier 2, and Tier 3 Off-Road Compression-Ignition Engines, Part II ( PDF - 16K )
California Exhaust Emission Standards and Test Procedures for New 2008 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-C ( PDF - 197K )
California Exhaust Emission Standards and Test Procedures for New 2011 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-D, amended October 25, 2012 ( PDF - 248K )
Manufacturers Advisory Correspondences
MAC 99-04: Tamper-Resistance Requirements for Diesel Injection Pumps ( PDF - 406K )
Mobile Source Mailouts
MSO 07-03: New Requirement to Report Carbon Dioxide Emissions from 2008 and Subsequent Model Year California Certified Vehicles and Engines ( PDF - 85K )
Executive Orders
FAQ
This portion is still under development; check back soon!
Stay Informed
Please sign up to the Mobile Source Mailouts and MAC list server.
Related Links
Air Resources Board's document management system, OpenDMS
Certification Guidelines, CI Engine Manufacturers Certification Guidance Document, applicable for EPA and ARB certification.
Sample Sensor Table, (XLS - 38K)
Contact Us
Manager: Kimberly Pryor, (626) 575-6640
