\r\nIllinois Department of Transportation awarded Siemens a $US 228m contract in 2014 to supply 32 of the 200km\/h diesel-electric locomotives for use on Amtrak services in the states of Illinois, California, Michigan, Missouri and Washington. Washington State Department of Transportation (WSDOT) has ordered eight locomotives as part of its $US 800m federally-funded Cascades High-Speed Rail Program.\r\nThe locomotive being used for testing is destined for Illinois, and the first SC-44 for Washington is due to arrive in the Pacific Northwest in early April. WSDOT says these locomotives will receive a \u201cCascades inspired\u201d livery.\r\nThe delivery of new traction and other improvements will enable WSDOT to introduce two additional daily Cascades services between Seattle and Portland in the autumn.\r\nProduction of the SC-44s is being carried out at Siemens\u2019 plant in Sacramento, California.\r\nThe four-axle ac traction Charger is the first locomotive to be equipped with Cummins' QSK 95 power unit. The 95-litre 16 cylinder engine is rated at 3.28MW and is equipped with Cummins' Modular Common Rail Fuel System (MCRS) with quad-turbocharging. The QSK95 is also equipped with Selective Catalytic Reduction (SCR) exhaust aftertreatment, enabling it to meet US Environmental Protection Agency (EPA) Tier 4 emissions standards.