We describe a unique co-curricular honor and integrity program at a large, research university's business school. We discuss the evolution of the program as well as the array of stakeholders who were involved in its early development and sustenance. We use an ethical culture template to highlight the formal and informal systems, and we discuss ongoing efforts to assess its effectiveness. We also reveal multiple challenges associated with building and sustaining a culture of honor and integrity for students, faculty, and staff. This program overview provides members of any business school community with a theory-based, but practical, roadmap for moving beyond finding a space in the academic curriculum to promote ethical behavior to developing and implementing a co-curricular honor and integrity program.