The Memorandum of Understanding (MOU) is a tool that postsecondary education (PSE) programs for students with intellectual disability (ID) can use to develop and define productive working partnerships with school districts, community agencies, or other external entities. In this Insight Brief, the authors explain MOU: their core components, their usage within a college program for students with intellectual disability, and their advantages and disadvantages. The authors also provide examples of MOU and how to use them with partners.