This report reviews the literature relating to Office of Management and Budget Circular A-95, a regulation designed to promote coordination of Federal programs with each other and with State and local plans and programs. The A-95 regulation attempts to offset a growing tendency among Federal programs to promote multijurisdictional planning that is often uncoordinated in geographies, function, and organization. A-95 contributions to effective substate regional planning and action have been considerable, but better information dissemination and training about how A-95 operates is needed.