The ALN Act began to be implemented in September 2021, and children and young people are gradually being moved from the SEN system to the ALN system.
Dechreuodd y Ddeddf ADY gael ei gweithredu ym mis Medi 2021, ac mae plant a phobl ifanc yn cael eu symud yn raddol o'r system AAA i'r system ADY.