PLASC is an electronic collection of pupil and school level data provided by all maintained sector primary, middle, secondary, nursery and special schools in January each year.
Mae CYBLD yn gasgliad data electronig o ddata ar lefel disgybl ac ysgol a ddarperir pob mis Ionawr gan bob ysgol gynradd, canol, uwchradd, meithrin ac arbennig y sector a gynhelir.