Little is empirically known about clinical supervision in addiction treatment. This study describes multiple domains of clinical supervision in addiction treatment from the perspectives of clinical supervisors and their counselors. Survey data were obtained from 484 matched clinical supervisorcounselor dyads working in diverse addiction treatment programs across the United States. Supervisors report wide-ranging experiences and training in supervision. Counselors generally perceive their supervisors job performance as effective. Supervisors and their counselors largely differ in their perceptions of supervision practices, with supervisors reporting greater supervision given and their counselors reporting less supervision received. The implications are discussed.