The final report describes Un Bien Comienzo, a 3-year model demonstration project which provided early intervention services for infants at risk and young children with mild/moderate disabilities who have working parents and are in day care. The project is a program of Rosemount Center (Washington, D.C.), a multicultural, bilingual day care center for infants and young children which serves a mixed socioeconomic neighborhood with a majority of Hispanic families. Among major program accomplishments were providing the only bilingual assessment and intervention team in day care for infants and children in the Washington, D.C. area, accommodating working parents by offering on-site child treatments, and successfully integrating a special education model component into a day care program. Topics addressed in the report include need for the program, program description (multidisciplinary service team, bilingual assessment and intervention services, technical support and training), evaluation procedures, program accomplishments (including the development of two manuals for family day care providers and one for program replication), and efforts toward program continuation and expansion. The bulk of the document consists of three appendices: external evaluation reports for each project year, an internal evaluation report, and sample individual evaluation reports on five children served by the program. (JW)