Despite the concerns of scholars in the field of instructional supervision, teacher evaluations continue to emphasize bureaucratic accountability and standardization. This article presents an argument for extending the Joint Committee on Standards' Personnel Evaluation Standards to include standards related to the practice of supervision. The proposed standards call for differentiated procedures, collaborative identification of teachers' professional development goals, multiple sources of data, emphasis on formative evaluation processes, consideration of both teachers' personal development goals and school/program improvement goals, and the formalization of formative evaluation processes to achieve clear and shared understanding of their purpose and goals. These standards would align teacher evaluation with aspects of instructional supervision namely,clarification and shared understanding of the process and purpose of evaluations, interpretation of teaching performance in the context of teachers' classrooms and professional values, and deliberation with teachers about how evaluation evidence depicts and informs their work.