Radiological service is provided in offices, clinics, hospitals, and other institutions, all varying widely in size and scope. Offices range from simple “one-man” units caring effectively for small patient loads to multiple-radiologist units caring for as many as 150 patients a day. Hospitals range from 10-bed units to 10,000 bed complexes. Clinics are similarly disparate. The service frequently includes radioactive isotopes in addition to general radiologic diagnosis and treatment. Since adequacy of staff is of particular importance in teaching programs, and since most teaching is done in hospital departments, the latter will be considered first. The quality of radiological service depends on several factors, the principal of which is the caliber of the radiologist or radiologists in charge. There should be a sufficient number of qualified men to discharge the duties of the department, be they service, teaching, research, or various combinations thereof. Several years ago the Chairman of the Commission o...