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ms-mailings -- Clarification of Alternate NOx FEL for 2011-2014 Model Year Nonroad Compression Ignition Engines in the 130 ≤ kW ≤ 560 Powe
Posted: 22 Dec 2010 12:14:45
Several nonroad compression-ignition engine manufacturers have requested that ARB clarify whether it will allow them to certify certain engines to the 3.8 g/kW-hr alternate oxides of nitrogen (NOx) family emission level (FEL) from the 2011 through the 2014 model years, consistent with the provisions of 40 Code of Federal Regulations section 1039.104, as amended on September 7, 2007. This letter provides a Manufacturers Advisory Correspondence (MAC) that clarifies that ARB will allow engine manufacturers to certify nonroad compression ignition engines in the 130 ≤ kW ≤ 560 power category to a 3.8 g/kW-hr alternate NOx FEL cap from the 2011 through the 2014 model years, consistent with the provisions of title 40, CFR section 1039.104, as effective September 7, 2007. The MAC and its attachment can be viewed at the link below. http://www.arb.ca.gov/msprog/macs/macs.htm
