Focusing on supervision training is important for a variety of reasons. Many professionals, for example, stress both the positive and negative impact supervisors have on the development of counselor trainees. In addition, counselors are likely to provide supervision during their professional career. Furthermore, the role of supervisor is often identified as a key identity element and a core competency for counseling professionals. The preparation of supervisors, therefore, seems worthy of continued scrutiny and study. The overall purpose of the present study was to examine interns' perceptions of the extent and quality of supervision training provided by American Psychological Association (APA)-accredited predoctoral internship sites, using both quantitative and qualitative approaches. Predoctoral interns' responses to an internship supervision training questionnaire indicated that counseling center interns supervised more trainees, received more supervision in their supervisory roles, reported more supervision training activities, and yielded higher supervisor development scores than did non-counseling-center interns. A qualitative analysis of participants' responses showed that non-counseling-center interns desired more supervision training and opportunities to provide supervision during their internship year than did counseling center interns. Implications for college counseling centers and non-college-counseling center internship sites are presented. (Contains 1 table.)