A private nonprofit organization founded in 1973, Philadelphia Corporation for Aging (PCA), is the fourth largest in a nationwide network of Area Agencies on Aging (AAA), and the largest in Pennsylvania. Brought into being by the federal Older Americans Act, these AAAs are mandated to "facilitate the area-wide development and implementation of a comprehensive, coordinated system for providing long-term care in home and community-based settings, in a manner responsive to the needs and preferences of older individuals and their family caregivers." PCA carries out this mission through advocacy, fund administration, planning, program development and service coordination.