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Ms. Hatef August 28,2006 <br /> PA-0600066(SA) Page 3 <br /> electric motors, or other CARB certified off-road technologies. To find engines certified by the <br /> CARB, see their certification website http://www,arb.ca.gov/msprog/offroad/cert/cert.i)hi). For more <br /> information on any of the technologies listed above, please contact Mr. Chris Acree, Senior Air <br /> Quality Specialist, at(559) 230-5829. <br /> • Construction equipment may be used that meets the current off-road engine emission standard (as <br /> certified by the California Air Resources Board (CARB), or be re-powered with an engine that meets <br /> this standard. Tier I, Tier II and Tier III engines have significantly less NOx and PM emissions <br /> compared to uncontrolled engines. To find engines certified by the CARB, see <br /> httl)://www.arb.ca.gov/msoroq/offroad/cert/cert.php, This site lists engines by type, then <br /> manufacturer. The "Executive Order" shows what Tier the engine is certified as. Rule 9510 <br /> requires construction exhaust emissions to be reduced by 20 percent for NOx and 45 percent for <br /> PM10 when compared to the statewide fleet average or to pay an in lieu mitigation fee. For more <br /> information on heavy-duty engines, please contact Mr. Thomas Astone, Air Quality Specialist, at <br /> (559)230-5800. <br /> District staff is available to meet with you and/or the applicant to further discuss the regulatory <br /> requirements that are associated with this project. If you have any questions or require further <br /> information, please call me at (559) 230-5818 or Mr. Dave Mitchell, Planning Manager, at (559) 230-5807 <br /> and provide the reference number at the top of this letter. <br /> Sincerely, <br /> sica R. Willis <br /> it Quality Specialist <br /> Central Region <br /> c:file <br />