The third edition of the National Technical Assistance Center for the Education of Neglected or Delinquent Children and Youth's (NDTAC's) "Transition Toolkit" provides updated information on existing policies, practices, strategies, and resources for transition that build on field experience and research. The "Toolkit" offers practical information that enables State and local administrators, teachers, and service providers to provide high-quality transition services for youth moving into, through, and out of education programs within the juvenile justice (JJ) system. Section I of this document provides an introduction to and overview of the Transition Toolkit. Section II of this document briefly addresses the topic of transition across five areas: (1) The transition process for youth in the JJ system; (2) The complexity of the JJ system; (3) Characteristics of the population; (4) Relevant transition literature and policies; and (5) Strategies for successful transitions. Sections III-VI each addresses a distinct stage of transition: (1) Entry into the JJ system; (2) Residence; (3) Exit from Secure Care; and (4) Aftercare. Each section provides strategies to improve the transition process at one of the four stages. Strategies specific to facilities, youth, families, and communities/systems are highlighted and examples are provided. Each section also includes pertinent resources, such as sample forms, protocols, and tools used at different stages of the transition process. Appendix A contains a self-study and planning document to guide program improvement at each stage of the transition process. Appendix B includes legal considerations related to transition. Appendix C provides additional information about transition-related requirements in the Individuals with Disabilities Education Act (IDEA) that are introduced in Section II. Appendix D summarizes Federal funding resources available to support transition programs. Appendix E features highlights of four transition-related programs around the country.