Because of this critical role and the dedication to professionalism of Appraisal Institute Members, Candidates, Practicing Affiliates, and Affiliates, the Appraisal Institute has adopted its Code of Professional Ethics and Standards of Professional Practice, which establishes requirements for ethical and competent practice. These rules also help to establish and sustain public trust in Appraisal Institute Members.

Definitions, Canons, and Ethical Rules make up the Code of Professional Ethics.