When a person who has been determined to be a child with a disability reaches the age of 18, except for such a person who has been determined to be incompetent under state law:
(a) An agency shall provide to both the person and to the person's parents any notice required by this act;
(b) all other rights accorded to parents under this act transfer to the person;
(c) the agency shall notify the person and the parents of the transfer of rights; and
(d) all rights accorded to parents under this act transfer to the person if incarcerated in an adult or juvenile federal, state or local correctional institution.