Off-Road Mobile Sources Emission Reduction Program

This page last reviewed March 20, 2008

The California Clean Air Act (CCAA) mandates the Air Resources Board (ARB) to achieve the maximum degree of emission reductions from all on- and off-road mobile sources in order to attain the state ambient air quality standards. Off-road mobile sources include:

Small Spark-Ignition Off-Road Engines and Equipment Less Than 25 Horsepower (Including Lawn and Garden Equipment, and Small Industrial Equipment)

Off-Road Recreational Vehicles (Including Motorcycles and All-Terrain Vehicles)

Off-Road Compression Ignition (Diesel) Engines and Equipment (This is for new equipment. If you are looking for the in-use (existing) diesel equipment please go here.)

Off-Road Large Spark Ignition (Gasoline and LPG) Engines and Equipment 25 Horsepower and Greater (Including Industrial Equipment, Forklifts, and Portable Generators)  See the newly designed website!

Airport Ground Support Equipment

Cargo Handling Equipment (Diesel) at Ports and Intermodal Rail Yards

Locomotives

Commercial Marine Vessels

Commercial Harbor Craft

Recreational Marine (Including Personal Water Craft, Ski Boats, Inboards, and Outboards)
Exhaust emission standards have been adopted by ARB and / or U.S. EPA for off-road engines included in the above categories.
Additional ARB Programs for Off-Road Engines and Equipment
The 1990 amendments to the federal Clean Air Act preempt California control of emissions from new farm and construction equipment under 175 horsepower. To view a description of preempt equipment, please click here. For information regarding the federal non-road engine emissions control program, please click here.


Where Can I Get More Information?
For more information, please call Scott Rowland at (626) 575-6676 or via email at srowland@arb.ca.gov.



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