Within the United States, defining the meaning of a degree and comparing the quality of institutions on a common set of metrics is no simple matter. In fact, there is no common definition of a US college degree beyond a general consensus that an undergraduate degree generally includes about 120 credits and consists of a general education component, the major, and electives. As if it weren't difficult enough to compare quality and to define degrees within a country, the problem is exponentially greater globally. Intensified globalization has resulted in increased academic and employee mobility, a growth in the number of academic programs offered across borders, and the multiplication of institutional partnerships. The need to understand institutional quality, however it is defined, and to compare learning outcomes across borders is even greater in this new environment, with practical and serious implications for mobile students and faculty, globally engaged institutions, and employers and organizations with global reach. This article describes six different approaches to global quality assurance--some underway and some under development. The first group is concerned largely with inputs and internal institutional processes for ongoing quality review. The three quality-assurance approaches in this group are: (1) the recognition of quality-assurance agencies or accreditors by a superbody; (2) the accreditation of institutions in other countries by a nationally based agency; and (3) mutual recognition of accreditation agencies. The second set of approaches includes three initiatives that focus on learning outcomes: (1) national or regional qualifications frameworks or degree profiles, which describe the learning outcomes associated with different levels of degrees; (2) initiatives to describe the learning outcomes associated with different disciplines (known as the Tuning Process); and (3) global tests of undergraduate learning outcomes, the Assessment of Higher Education Learning Outcomes (AHELO), sponsored by the Organization for Economic Cooperation and Development (OECD). (Contains 11 resources.)