Phase I of a multiphase research program in progress at the Technical Education Research Center, Inc., was conducted to analyze needs and resources in terms of job performance tasks, career opportunities, and training requirements for nuclear medical technicians. Data were gathered through personal interviews with 203 persons, mostly physicians, and from 151 questionnaire respondents. Major findings were: (1) Nuclear medicine has grown rapidly, but more money, better equipment, and improved instructional programs for technicians would speed the growth, (2) Diagnosis is the major concern of every nuclear medicine department surveyed, although most are involved in some radiotherapy work, (3) The technician's tasks center upon scanning and the related activities of radiopharmaceutical preparation and oral administration to the patient, (4) Standardization of preparatory programs and certification requirements is needed, and (5) Need was expressed for a standard textbook written especially for the technician and for more careful instruction in clinical procedure, use of instruments, mathematics, and radiation physics. (SB)