IDEA 2004 mandates transition planning to students 16 years and older.
TRANSITION SERVICES: The term “transition services” means a coordinated set of activities for a child with a disability that—
(A) is designed to be within a results-oriented process, that is focused on improving the academic and functional achievement of the child with a disability to facilitate the child’s movement from school to post-school activities, including post-secondary education, vocational education, integrated employment (including supported employment), continuing and adult education, adult services, independent living, or community participation;
(B) is based on the individual child’s needs, taking into account the child’s strengths, preferences, and interests; and
(C) includes instruction, related services, community experiences, the development of employment and other post-school adult living objectives, and when appropriate, acquisition of daily living skills and functional vocational evaluation.