Given the significant number of investigations required to be carried out, the whole programme is anticipated to run over two years, with investigations being undertaken throughout this whole period.
O ystyried y nifer sylweddol o ymchwiliadau y mae'n ofynnol eu cynnal, rhagwelir y bydd y Rhaglen gyfan yn para dros ddwy flynedd, gydag ymchwiliadau'n cael eu cynnal drwy gydol y cyfnod hwn.