OBJECTIVE: To develop standards and associated criteria for the selection, training, and evaluation of athletic training approved clinical instructors (ACIs). DESIGN AND SETTING: A previously developed set of 7 physical therapy clinical instructor standards/criteria and 2 additional standards/criteria developed through a review of the literature were systematically adapted, judged, and revised through a Delphi technique. SUBJECTS: Athletic training education experts currently employed as program directors for entry-level Commission on Accreditation of Allied Health Education Programs-accredited athletic training educational programs and who had the following: a doctoral degree, at least 5 years of supervising athletic training students, and familiarity/experience with clinical instruction in various athletic training clinical education settings. MEASUREMENTS: We used panelists' critiques and ratings to make sequential revisions in a series of 3 Delphi rounds. Standards were rated as to whether they were clear, necessary, and appropriate. We rated criteria for the associated standard as to whether they were useful, helpful, clear, specific, and consistent. RESULTS: We developed a final set of 7 standards and 50 associated criteria to measure these standards. The accepted standards include the following: legal and ethical behavior, communication skills, interpersonal relationships, instructional skills, supervisory and administrative skills, evaluation of performance, and clinical skills and knowledge. CONCLUSIONS: The 7 standards and associated criteria developed in this research project could be used not only for selecting, training, and evaluating an ACI but also for developing an understanding of the requirements of clinical education in general. Further research should include validating these standards/criteria among athletic training ACIs representing different types of clinical settings.