This report describes the Year 5 work of the National Research Center for Career and Technical Education's (NRCCTE) Technical Assistance (TA) Academy. In 2011-2012, the TA plan carried out by FHI 360 on behalf of the NRCCTE focused on developing a conceptual base for work-based learning (WBL), a strategy that helps students apply academic and technical skills and develop employability skills. To gather information on best practices in WBL for high-school aged students in the United States, FHI 360 used a multi-pronged approach, including a literature review, web searches, telephone interviews, and site visits to examine three WBL models: internships/co-operative (co-op) education, apprenticeships, and school-based enterprises. Findings are categorized and summarized, and recommendations for WBL are presented. The following are appended: (1) Phone Interview Questions; (2) Phone Interview Vignettes; (3) Case Studies from Site Visits; and (4) Examples of Documents Collected from WBL Sites.