This paper describes the Starting Early Starting Smart (SESS) project, an early intervention program that has been developed in the context of the national, multi-site program and evaluation. The emphasis in SESS is on the integration of behavioral health services into easily accessible, non-threatening settings where caregivers naturally and regularly take their young children. Current SESS sites are based in primary pediatric health care and early childhood educational settings. The major goal of this early intervention service integration approach is to increase access and utilization of needed behavioral health services by families with young children, thereby improving child and family outcomes and resiliency. The focus is on providing and coordinating prevention and early intervention activities for young children as well as their adult caregivers and siblings to strengthen the entire family. Throughout these activities, SESS programs advocate a relationship-oriented approach at all systems levels, including parent-child, family-staff, staff-agency, and agency-agency interactions. The purpose of this paper is to assist policymakers and program administrators in replicating the SESS approach by describing its essential philosophical principles and structural components. In addition to the description of the SESS philosophy, a general overview of the implementation and planning processes is provided. (Contains 132 references and 4 exhibits.) (GCP)