Large Spark-Ignition Engine - Regulatory and Certification Documents

This page last reviewed October 1, 2012


This page provides a list of the Manufacturers Advisory Correspondence (MACs), mailouts, correspondence, regulations, test procedures, and guidelines applicable to Off-Road Large Spark-Ignition Engines 25 Horsepower and greater, and is primarily for the interest and needs of manufacturers and others that are required to obtain certification from ARB. For more public-oriented materials, please visit our Off-Road Large Spark-Ignition Engines main program page.

Please sign up to the new Mobile Source Mailouts and MAC list serve to be notified when a new Mobile Source Mailout or MAC has been posted to the Mobile Source Mailouts or Manufacturers Advisory Correspondenc (MAC) webpages.



Regulation and Test Procedures
Manufacturers Advisory Correspondence
Mobile Source Mailouts
Correspondence
Guidelines
Certification Database (includes Executive Orders)
Document Management System (DMS)

Regulation and Test Procedures:

Regulations Off-Road Large Spark-Ignition Engines (2001-2006)

Sections 2430-2439, Title 13, California Code of Regulations (PDF - 206K) (adopted September 1, 1999)

Off-Road Large Spark-Ignition Engines (2007 and later)

Amended Sections 2430-2431, 2433-2434,and 2438, Title 13, California Code of Regulations (PDF - 237K) (amended March 2, 2007)

Amended Section 2433, Title 13, California Code of Regulations (PDF - 33K) (amended November 21, 2008)

View the informal documents pertaining to this rulemaking.

Spark-Ignition Small Off-Road Engines

Sections 2400-2409, Title 13, California Code of Regulations (PDF - 270K)
Test Procedures Off-Road Large Spark-Ignition Engines

California Exhaust Emission Standards and Test Procedures for New 2001 through 2006 Off-Road Large Spark-Ignition Engines (PDF - 181K) (amended March 2, 2007)

California Exhaust and Evaporative Emission Standards and Test Procedures for New 2007 through 2009 Off-Road Large Spark-Ignition Engines (2007 - 2009 Test Procedure 1048) (PDF - 105K) (adopted March 2, 2007)

California Exhaust and Evaporative Emission Standards and Test Procedures for New 2010 and Later Off-Road Large Spark-ignition Engines (2010 and Later Test Procedure 1048) (PDF - 211K) (adopted March 2, 2007)

Amended California Exhaust and Evaporative Emission Standards and Test Procedures for New 2010 and Later Off-Road Large Spark-ignition Engines (2010 and Later Test Procedure 1048) (PDF - 15K) (amended November 21, 2008)

California Exhaust and Evaporative Emission Standards and Test Procedures for New 2007 and Later Off-Road Large Spark-Ignition Engines (Test Procedures 1065 and 1068) (PDF - 124K) (adopted March 2, 2007)

Spark-Ignition Small Off-Road Engines

California Exhaust Emission Standards and Test Procedures for 1995 and Later Small Off-Road Engines (PDF - 536K) (last amended March 23, 1999)

Manufacturers Advisory Correspondence:

MAC # Subject
MAC 05-02 Cost Limit For High-Priced Warranted Parts For 2006 Model-Year (MY) Passenger Cars (PC), Light-Duty Trucks (LDTs), Medium-Duty Vehicles (MDVs) And Engines Used In These Vehicles (MDEs), And Off-Road Large Spark-Ignition Engines (LSIEs) (PDF - 99K) (added May 13, 2005)
MAC 01-01 Optional Use of the Federal Engine Test Cycle Speed and Load Specifications for Exhaust Emission Testing of Spark-Ignition Small Off-Road Engines (added June 6, 2001)

Mobile Source Mailouts:

Mailout # Subject
MSO 07-03 New Requirement to Report Carbon Dioxide Emissions from 2008 and Subsequent Model Year California Certified Vehicles and Engines (PDF - 85K)
MSO 01-03 Format for Electronic and Hard-Copy Submittal of Quarterly Off-Road Large Spark-Ignition Engine (LSI) Manufacturer Production Line Testing Reports (PDF - 40K).
Attachments (Excel - 72K) or (PDF - 63K).
Microsoft Database (Access - 308K).
MSO 00-13 Certification Guideline For 2001 Model-Year (MY) And Later LSI Engines (PDF - 151K)

For Model Year 2001 - 2007 For Model Year 2008 And Later
MSO 96-30 Tamper-Resistance Requirements for Gaseous-Fueled Engines (PDF - 9248K)

Correspondence:

Reference No. C-2001-503 Dunway & Cross July 31, 2001 Letter to ARB on CARB LSI Regulation-assigning engines to model years (PDF - 360K)

Guidelines:

  Large Spark-Ignited Engine/Equipment (Less Than or Equal To 1 Liter) Evaporative Certification

LSIE ≤1 Liter regulations incorporate by reference the Small Off-Road Engine and Equipment certification and approval procedures. As a result, the evaporative certification procedures for 2011 and Later LSIE ≤1 Liter are the same as those for Small Off-Road Engines and Equipment (except Small Production Volume Tank Exemption). The following are the relevant SORE documents:

  • Guidelines for Evaporative Certification of 2006 and Later Small Off-Road Engine/Equipment (PDF - 284K)
  • TP - 901 ~ Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Equipment Fuel Tanks (PDF - 51K)
  • TP-902 ~ Test Procedure for Determining Diurnal Evaporative Emissions from Small Off-Road Engines (PDF - 60K)
  • CP - 901 ~ Certification And Approval Procedures for Small Off-Road Engine Fuel Tanks (PDF - 43K)
  • CP - 902 ~ Certification And Approval Procedures for Evaporative Emission Control Systems (PDF - 139K)

Engine Sampling Plan Requirements (PDF - 61K) (last updated November 15, 2002)

Certification Database:

The following link provides the certification database and the Executive Orders for Off-Road Large Spark-Ignition Engines.

Off-Road Certification Database


Document Management System (DMS):

The following link is for information and guidelines regarding the electronic Document Management System used to submit certification applications and supporting documents:

DMS Homepage


For more information on Off-Road Large Spark-Ignition Engine certification procedures, please contact: Byron Ng at (626) 459-4312.

(Less Than or Equal To 1 Liter Evaporative Only)
Sophia Mahmood at (626) 350-6435.

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