Acela Express
Phase V was introduced with the arrival of the "Acela Express" high-speed train sets in 2000 and is currently used on most locomotives. Locomotives are painted light gray, with a blue stripe (darker than Phases I–III, but lighter than IV) at the top and a thin red reflective sill stripe at the bottom. The blue stripe has a wavy bottom on Genesis locomotives and "Acela Express" power cars, and a flat bottom on other locomotives and ex-F40PH non-powered control units (NPCUs). The Amtrak "Travelmark" logo is painted near the front or rear of the unit.