When you tell the local authority you think your child has ALN, the local authority must make a decision about whether your child has ALN.
Pan fyddwch chi’n dweud wrth yr awdurdod lleol eich bod chi’n credu bod gan eich plentyn ADY, rhaid i’r awdurdod lleol wneud penderfyniad ynghylch a oes gan eich plentyn ADY.