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Mr. Martin May 1,2C-?6 <br /> Global Investment Page 6 <br /> Tier III engines have significantly less NOx and PM emissions compared to uncontrolled engines. To <br /> find engines certified by the CARB, see http://www.arb.ca.gov/msprog/offroad/cert/cert.php. This site <br /> lists engines by type, then manufacturer. The "Executive Order" shows what Tier the engine is <br /> certified as. Rule 9510 requires construction exhaust emissions to be reduced by 20 percent for NOx <br /> and 45 percent for PM10 when compared to the statewide fleet average or to pay an in lieu mitigation <br /> fee. For more information on heavy-duty engines, please contact Mr. Thomas Astone, Air Quality <br /> Specialist, at(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 /> 9,ssica R. Willis <br /> Air Quality Specialist <br /> Central Region <br /> c: file <br />