The ACS-64, also known as the "Amtrak Cities Sprinter", is Amtrak's replacement of the aging AEM-7 and HHP-8 electric locomotives for operation in the Northeast and Keystone Corridors. Built by Siemens and based on the EuroSprinter European electric locomotive design, the Cities Sprinter is nonetheless a unique model to North America and is built entirely in the United States. All new molding and detailing, designed with assistance from both Siemens and Amtrak, the ACS-64 will have drop-in DCC compatibility, directional lighting, adjustable pantographs, and a seamless, modern look.