The Transatlantic Task Force on Antimicrobial Resistance (TATFAR) fosters cooperation between the European Union (EU) andthe United States (US) on the issue of antimicrobial resistance. The first TATFAR recommendation refers to appropriate use of antimicrobials in human medicine through hospital Antimicrobial Stewardship Programs (ASPs) and, specifically, to the development of common structure and process indicators of ASP. These indicators should allow characterization of programs and comparisons among healthcare systems in EU and US.