Ongoing research and evaluation that produce actionable, widely disseminated evidence are central to the continuous improvement of U.S. Department of Labor (DOL) programs. In addition, the Workforce Innovation and Opportunity Act of 2014 (WIOA) requires DOL to conduct periodic, independent evaluations to inform the effective operation of WIOA programs and services. To support the development of DOL’s research portfolio, this scan examines existing evidence on key topics related to WIOA programs and services. The scan focuses on four main topic areas, selected through a series of discussions with DOL’s Chief Evaluation Office, Employment and Training Administration (ETA), and other DOL staff: case management, integrated service delivery, training programs, and youth services.