Taconic Developmental Disabilities Services Office (DDSO) is a regional agency of the New York State OPWDD. The Taconic district includes Columbia, Dutchess, Greene, Putnam, and Ulster counties.

The DDSO has offices in each of the five counties and a large campus in Wassaic. It operates a network of residential and habilitative programs throughout the region, as well as providing clinic services and service coordination. It also provides support services which enable families to keep their family member with a disability at home.

Taconic works closely with many private voluntary agencies which provide related services. Taconic provides them with technical assistance and training. The DDSO and the private sector plan and work together to ensure the best quality of life possible for people residing in the Taconic district who have developmental disabilities.