As February ended, Siemens's Sacramento, Calif., plant sent out its 35th Amtrak Cities Sprinter 64 (ACS-64) electric locomotive, reaching the halfway mark of its planned delivery of 70 units.

A Siemens spokeswoman informed Railway Age of the milestone on Wednesday, March 4, 2015. The units are being shipped by rail to Amtrak’s Northeast Corridor. Siemens delivered the first ACS-64 to Amtrak in February 2014.

Last September Siemens Rolling Stock began its 15-year technical support and spare parts supply agreement with Amtrak for the new locomotives. As part of this agreement, Siemens technicians will be on-site at four locations (Boston, New York, Wilmington, Del., and Washington, D.C.) to provide technical expertise, spare parts and engineering support.