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Additional mitigation measures can be found in CAPCOA's Quantifying Greenhouse Gas Mitigation Measures, which attempt to reduce GHG levels, as well as reduce criteria air pollutants such as particulate matter and NOi DPM and NOx area byproduct of diesel fuel combustion and are emitted 37 by on -mad vehicles and by off road construction equipment. Mitigation for criteria pollutantemissions should include consideration of the following measures in an effort to reduce construction emissions." Require implementation of Diesel Control Measures The Northeast Diesel Collaborative (NEDC) is a regionally coordinated initiative to reduce diesel emissions, improve public health, and promote clean diesel technology. The NEDC recommends that contracts for all construction projects require the fullowingdieseI control measures: " • All diesel generators on site for more than 10 total days must be equipped with emission control technology verified by EPA or CARR to reduce PM emissions by a minimum of gs percent. • All diesel vehicles, construction equipment, and generators on site shall be fueled with ultra -low sulfur diesel fuel (ULSD) or a biadiesel blend" approved by the original engine manufacturer with sulfur content of 15 parts per million (ppm) or less. . -<4nn [quipment lingines The NEDC recognizes that availandity of equipment that meets the EPA's newer standards is limited." Due to this limitation, the NEDC proposes actions that can betaken to reduce emissions from existing equipment in the Best Practices for Clean Diesel Construction report.il These actions include but are not limited to: • Repowering equipment (i.e, replacing olderengines with newer, cleaner enginesand leaving the body of the equipment intact). Engine repower may be cost-effective emissions reduction strategy when a vehicle or machine has a long useful life and the cost of the engine does hot approach the cost of the entire vehicle or machine. Examples of good potential replacement candidates include marine vessels, locomotives, and large construction machioes.n Older diesel vehiclesor machines can be repowered with newer diesel engines or in some cases with engines that operate on alternative fuels. The original engine is taken out of service and a new engine with reduced emission characteristics is installed.. Significant emission 'rhUp,l/www capeoa ors/wocontent/uploadsl2o10111lCAPCOA-Quantification-Report-9-14final pdf 's For measures to reduce operational DPM emissions, see section titled "Additional Feasible Mitigation Measures Available to Reduce Operational Emissions" on p. 25 of this letter. These measures would effectively reduce operational VOC and NOx emissions, DPM emissions, as well as GHG emissions. 29 Diesel Emission Controls in Construction Projects, amiloble at:http://www2, a pa.eov/sites/p rod action/Files/2015-C9/documentslnedc.model Kontra ct-sepcification.pd f 3 Siodiesel lends are only to be used in conjumtion with the technologies which have been verified for use with bindiesel blends and are subject to the following ri quirementg- http:/fw.arb.m.gm/dieseIMerdev/repjbfodieselmmpIfance.pdf 31hul //northeastdiesel oreJpdf/RestProctims4CleanDieselConstruaionAue2012.pdf hup,liwrtheastdiesel.orsJvdf/BestPraalms4CleanDieselConstruafonAug2012.pdf 33 Rapair, Rehr i ld, Intl Repnwer, EPA, dvnrlghlr at ht tmc //www ena rn+/verified-diasel-ferh JleTrn-a hrn u-varif rd- technolociescleandieselttrepair is 38 39 75C-183