Amtrak announced its new Acela trains will begin revenue service on Aug. 28, with all 28 of the new sets expected to be carrying passengers by the end of 2027.

Amtrak first introduced its Acela product in 2000. The NextGen trains were outlooked to enter service in 2022, but experienced numerous hurdles delaying their introduction.

Amtrak announced today that the first five Next Generation Acela trainsets will begin operating over its Boston-Washington Northeast Corridor on Thursday, Aug. 28. Information regarding which departures will be new Acelas and when they can be booked was not initially revealed.