California State Nonroad Engine Pollution Control Standards; In-Use Diesel-Fueled Transport Refrigeration Units (TRUs) and TRU Generator Sets and Facilities Where TRUs Operate; Notice of Decision

The Environmental Protection Agency (``EPA'') is granting the California Air Resources Board (``CARB'') request for authorization of amendments to its Airborne Toxic Control Measure for In-Use Diesel- Fueled Transport Refrigeration Units (``TRU'') and TRU Generator Sets and Facilities Where TRUs Operate (together ``2011 TRU Amendments''). EPA's decision also confirms that certain of the 2011 TRU amendments are within the scope of prior EPA authorizations. The 2011 TRU Amendments primarily provide owners of TRU engines with certain flexibilities; clarify recordkeeping requirements for certain types of TRU engines; establish requirements for businesses that arrange, hire, contract, or dispatch the transport of goods in TRU-equipped trucks, trailers, or containers; and address other issues that arose during the initial implementation of the regulation. This decision is issued under the authority of the Clean Air Act (``CAA'' or ``Act'').