This final report discusses the activities and outcomes of the Elementary and Middle Schools Technical Assistance Center (EMSTAC), which has developed a model of special education technical assistance (TA) to local school districts that can be implemented on a national scale. This report provides a comprehensive examination of EMSTAC's support to local school districts, reports findings regarding the local implementation of research-based practices, and discusses effectiveness of national TA activities. The EMSTAC model of TA included three distinct approaches. Strategy I involved face-to-face training of Linking Agents (LAs) and financial support for their salary and TA activities. Strategy II provided face-to-face training and Strategy III provided Web-based training. EMSTAC conducted annual evaluations of 32 districts that have completed LA training and found: (1) the delivery of TA at the local level takes unique shapes, regardless of the type of EMSTAC supports provided; (2) districts in Strategies I and II are positively moving through the change process at similar rates; (3) TA is influenced by the presence of mediating factors at the local level; and (4) EMSTAC LAs in both Strategy I and II have become less dependent upon EMSTAC supports over time. Appendices include descriptions of TA activities. (CR)