This training module provides participants with an overview of key issues relevant to the Older Americans Act (OAA), a seminal piece of legislation that underpins the Aging Services Network and authorizes critical programs that support older adults. This course discusses the historical development, functions, and governance of the Act, its service programs, populations served, and funding. Older Americans Act 101 is aimed toward new, as well as seasoned, professional staff in the field of aging who would like a better understanding of the OAA.