This report concludes a two-year study of workforce service delivery in eight states, sixteen local areas, and more than thirty local One-Stop Career Centers operating under the auspices of the federal Workforce Investment Act (WIA) of 1998 (Public Law 105-220). The purpose of this study is to provide useful information for both national policymakers in the Executive Branch and Congress for WIA and related reauthorizations (e.g., Perkins, TANF) and for program administrators and policy researchers. The research has been designed to enhance understanding of the way workforce service delivery has been operating across the country. Findings are organized according to five major topics which the study addressed: (1) leadership, including the role of employers and the private sector; (2) system administration and funding; (3) organization and operation of One-Stop Career Centers; (4) service orientation and mix; and (5) the use of market mechanisms such as the Eligible Training Provider (ETP) list, performance standards, and Individual Training Accounts (ITAs).