SORE - Current Regulations and Regulatory History
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Current Regulations
- Exhaust Emissions Regulations (sections 2400 - 2409, amended October 25, 2012)
- California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines (Part 1054)
- California Exhaust Emission Standards and Test Procedures for New 2013 and Later Small Off-Road Engines (Part 1065)
- Evaporative Emissions Regulations (sections 2750 - 2774, amended May 6, 2019)
- CP-901 Certification Procedure for Evaporative Emission Control Systems on Engines With Displacement Less Than or Equal to 80 Cubic Centimeters
- CP-902 Certification Procedure for Evaporative Emission Control Systems on Engines With Displacement Greater Than 80 Cubic Centimeters
- TP-901 Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Fuel Tanks
- TP-902 Test Procedure for Determining Diurnal Emissions from Small Off-Road Engines
2016
In 2016, the California Air Resources Board (CARB) amended its evaporative emissions standards for the entire category of Small Off-Road Engines (SORE).
2011
In 2011, CARB developed a new set of exhaust emissions test procedures.
2008 - 2010
In 2010, CARB approved new language that was added to the SORE regulations which set standards for Zero Emissions Equipment.
2003
In 2003, CARB developed the first set of evaporative emissions standards for the category.
1998
In 1998, CARB updated the exhaust emissions standards that Small Off-Road Engines are held to.
- California Exhaust Emission Standards
- Final Regulation Order Part 2
- Final Regulation Order Part 1
- March 1998 Rulemaking Activity
1996
In 1996, CARB added snow throwers and ice augers to the list of exempt machines. CARB also updated its exhaust standards in this rulemaking.
1994
In 1994, CARB established a regulation requiring certified test fuel to be used for testing Small Off-Road Engines.
1993
In 1993, CARB postponed the start date for the exhaust standards for one year.