Further information on how and when children will move to the ALN system from the SEN system is available in the Additional learning needs (ALN) system: guide for parents and families on GOV.WALES.
Mae rhagor o wybodaeth am sut a phryd y bydd plant yn symud i'r system ADY o'r system AAA ar gael yn y System anghenion dysgu ychwanegol (ADY): canllaw i rieni a theuluoedd ar LLYW.CYMRU