Each community mental health services program shall participate in the development of school-to-community transition services for individuals with serious mental illness, serious emotional disturbance, or developmental disability. This planning and development shall be done in conjunction with the individual’s local school district or intermediate school district as appropriate and shall begin not later than the school year in which the individual student reaches 16 years of age. These services shall be individualized. This section is not intended to increase or decrease the fiscal responsibility of school districts, community mental health services programs, or any other agency or organization with respect to individuals described in this section.