Research has demonstrated that ethical decision making is a fundamental competency of both rehabilitation counselors (Leahy, Muenzen, Saunders, & Strauser, 2009) and rehabilitation counseling supervisors (Thielsen & Leahy, 2001). As such, it is a required preservice training component of programs accredited by the Council for Accreditation of Counseling & Related Educational Programs (CACREP; 2016). In addition, credentialing organizations (e.g., licensure boards, certification organizations) require ongoing continuing education specific to ethics (American Counseling Association, 2014; Association for Counselor Education and Supervision [ACES], 2011; Commission on Rehabilitation Counselor Certification [CRCC], 2017; National Board for Certified Counselors, 2012). Even with multiple levels of formal instruction, the supervisor has the most significant role in the development of ethical awareness and reasoning in the counselor (Kerkhoff, Hanson, Guenther, & Ashkanazi, 1997). As ethical decision making is complex and challenging, the rehabilitation counseling supervisor plays an essential role in the counselor's development in this slow developing area of competence (Corey, Corey, & Callanan, 2007; Kocet, 2006; Lambie & Sias, 2009). Ethics represents a knowledge area that can be taught and clinical supervision is a medium for instruction (Tarvydas, 2012). This is evident as multiple ethical decision-making models in counseling commonly include supervision or consultation as an essential part of the process (Cottone & Claus, 2000). It is important that counselors and supervisors conceptualize ethical decision making as a dynamic interpersonal process of consultation, negotiation, and arbitration between the counselor and client, facilitated by the supervisor (Lehr & Sumarah, 2004), rather than a counselor-centric process (Cottone, 2001; Passmore, 2009). Supervisors help to shape ethical awareness and practice in a multitude of ways. The CRCC Code of Professional ethics advises rehabilitation counseling supervisors to make supervisees aware of ethical and legal standards and to adhere to these professional standards of practice (Section H.4.a; CRCC, 2017). Counselor perceptions of their supervisor's ethics can influence the supervisory working alliance (SWA) and the realization of goals and tasks within the supervisory setting (