A wnaiff y Gweinidog gynghori pryd y mae Trafnidiaeth Cymru yn disgwyl i Ddosbarth 175 gael ei dynnu allan o wasanaeth a chael ei ddisodli gan ei drenau newydd?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 21/03/2023
Transport for Wales (TfW) currently has 27 Class 175s and is working with train owners on when they will be returned this year. TfW will be replacing the Class 175s with brand new Class 197s as part of our £800m investment in brand new trains.
As of 16 March, TfW has 15 Class 197s provisionally accepted. Six are already in passenger service.