New DDA Contracts Page Department of Social and Health Service’s Developmental Disabilities Administration sent this bulletin at 05/14/2018 03:18 PM PDT Updated Contracts Page Developmental Disabilities Administration Update May 14, 2018 The Developmental Disabilities Administration contracts page has been updated. You can find information on: Types of DDA contracts Provider qualifications Sample contract language Who to contact if you are interested in becoming a contracted provider Contact us for questions or feedback.