中央線快速
JR East plans to add two bilevel Green (first class) cars to 58 ten-car and six-car E233-0 series EMU sets operated on the Chūō Line (Rapid) (including through service trains to the Ōme Line) from fiscal 2023. The Green cars will be positioned as cars 4 and 5 in the newly formed 12- and 8-car sets.