Registration, licensing and accreditation of Diagnostic Radiographers/Medical Imaging Technologists and Radiation Therapists, are areas determined by individual states and territories in Australia.
To work in New South Wales in the above professions, the Environment Protection Agency or EPA has certain regulatory powers which include regulating the use of radioactive substances and radiation equipment.
The EPA is part of the Department of Environment and Climate Change, NSW, and information regarding the application process, can be found on their website.