Cadarnhawyd hefyd y bydd gradd TGAU C mewn Cymraeg a/neu Saesneg ac mewn Mathemateg yn disodli'r gofyniad presennol o radd B. Ystyrir bod y radd B yn rhwystr diangen rhag addysgu, ac mae’r newid yn golygu bod y gofynion yng Nghymru bellach yr un fath â gweddill y DU.
It has also been confirmed that a GCSE grade of C in English and/or Welsh and in Mathematics will replace the current requirement of B grade. It is considered that the B grade was an unnecessary barrier to teaching, and now puts Wales in line with the rest of the UK.