Cafodd y System Genedlaethol ar gyfer Categoreiddio Ysgolion ei chyflwyno yn 2014, ac mae'n gosod ysgolion mewn un o bedwar categori lliw i ddangos lefel y cymorth sydd ei angen - gwyrdd, melyn, oren a choch.
The National School Categorisation System, introduced in 2014, places schools into one of four colour-coded support categories to demonstrate the level of support they need - green, yellow, amber and red.