S.2584: A bill to establish a program to evaluate HIV/AIDS programs in order to improve accountability, increase transparency, and ensure the delivery of evidence-based services.

PEPFAR Accountability and Transparency Act - Amends the United States Leadership Against HIV/AIDS, Tuberculosis, and Malaria Act of 2003 to direct the Coordinator of United States Government Activities to Combat HIV/AIDS Globally to: (1) establish a mechanism to evaluate global HIV/AIDS programs financed by the U.S. government in order to improve accountability, increase transparency, and ensure the delivery of evidence-based services; and (2) develop a five-year strategic plan for program monitoring, operations research, and impact evaluation research.