Set out in the Developmental Disabilities Assistance and Bill of Rights Act (DD Act) (P.L. 106-402).
The governor shall select members of the council, at his or her discretion after soliciting recommendations from organizations representing a broad range of individuals with developmental disabilities and individuals interested in individuals with developmental disabilities, including the non-state agency members of the council.
The governor shall make appropriate provisions to rotate the membership of the council. The council shall include representatives of the principal state agencies. Not less than 60 percent of the membership of the council shall consist of individuals with developmental disabilities; parents or guardians of children with developmental disabilities; or immediate relatives or guardians of adults with mentally impairing developmental disabilities who cannot advocate for themselves; and not employees of a state agency that receives funds or provides services under this part, and who are not managing employees (as defined in section 1126(b) of the Social Security Act).