Register as a Social Service Worker Please answer these questions to determine which application stream may apply in your case Register as a Social Service WorkerDo you have a social service worker diploma from an Ontario college of applied arts and technology?YesNo Do you know your application stream already? Select one of the following: I have a social service worker diploma from an Ontario College of Applied Arts & Technology I do not have a social service worker diploma or I have a social service worker diploma from outside Ontario