California State Nonroad Engine Pollution Control Standards; Small Off-Road Engines Regulations; Notice of Decision

The Environmental Protection Agency (EPA) is confirming that the California Air Resources Board's (CARB) 2008 amendments to its Small Off-Road Engines (SORE) regulation (2008 Amendments) are within the scope of previous EPA authorizations. The 2008 Amendments modify provisions through which manufacturers may generate and use emission credits to comply with SORE emission standards, and establish an ethanol blend certification fuel option. CARB's SORE regulations apply to all small off-road engines rated at or below 19 kilowatts (kW) (25 horsepower (hp)). This decision is issued under the authority of the Clean Air Act (CAA or Act).