The taxonomy of the functions of dental x-ray technologists presented in this report resulted from a dental radiography curriculum development project undertaken at Middlesex County College (MCC) in 1981. After an introductory section citing arguments for creating taxonomies of objectives, the report explains the impetus for the curriculum development project in a New Jersey state law requiring the completion of a 40-hour course in dental radiography as a prerequisite to state licensure. The following section considers the development of the taxonomy, whereby the DACUM process, which relies upon experts employed on the job, was used to identify job requirements through job analysis. The complete taxonomy is then presented. The taxonomy consists of 11 major duties, each consisting of 2 or more tasks, and each task consisting of 2 or more steps. The major duties are practicing legal limitations for dental x-ray technologists; exposing various types of radiographs (i.e., paralleling, bisecting, intraoral occlusal, extraoral occlusal, panographic, cephalometric, and lateral jaw radiographs); processing radiographs; completing patient records; and obtaining a state license. The paper concludes by explaining how the taxonomy has been translated into a curriculum guide which uses the duties to specify course goals, the tasks to specify unit goals, and the steps to specify lesson-level behavioral objectives. (DAB)