This final report discusses the activities and outcomes of a project that addressed three challenges to improving outcomes for young children with disabilities: (1) a current and thorough synthesis of the knowledge base, (2) the effective translation and dissemination of this information for families, practitioners, and administrators, and (3) an understanding of policy and systems change support necessary to implement and sustain high quality services. In Phase 1, the knowledge base was synthesized by critically reviewing the extant literature, gathering the subjective views of 388 stakeholders, and synthesizing this knowledge base into 240 recommended practices. In Phase 2, the project developed and disseminated products in preferred formats for maximum suitability, prepared and field-tested products, disseminated the recommended practices nationwide, and provided regional and national training. In Phase 3, the project identified and incorporated training and systems change strategies to establish sustainable change in the quality of services for young children with disabilities and their families. The project also prepared six peer reviewed manuscripts for publication and video and Web-based products to accompany the print products produced in Phase 2. Appendices include: Figures; Literature Review Coding Forms; Manuscripts; Products, Web Site and Training; and Focus Group Recommendations. (Contains 17 references.) (CR)