Student learning and development that occurs as a result of co-curricular activities is an integral part of the college experience. Students apply knowledge learned in the classroom and develop broad skills such as teamwork, cultural competence, effective communication, leadership, project management, critical thinking, and problem solving by engaging in meaningful out-of-class experiences. These experiences may be formal programs designed to complement the curriculum, such as service learning and undergraduate research, or activities such as membership in campus organizations, on-campus employment, and participation in campussponsored events and programs. Co-curricular initiatives can facilitate and reinforce student learning as well as prepare students for the workplace. The contributions of these initiatives to student learning and development have been well documented in higher education literature (see Kuh, 2008) and stakeholders are increasingly focused on these educational opportunities.Faculty, administrators, and student affairs educators understand the importance of co-curricular programs as well as the importance of assessing program outcomes for the purposes of improvement and accountability. These internal stakeholders, along with institutional researchers, regularly assess the learning and development that takes place through co-curricular activities and use that information to improve these initiatives. External stakeholders such as regional accreditors also recognize that co-curricular activities are an important part of the college experience, and include assessment of co-curricular learning as part of the accreditation process. This chapter outlines the role co-curricular outcomes assessment plays in NEW DIRECTIONS FOR INSTITUTIONAL RESEARCH, no. 164