The Association of Research Libraries (ARL) Assessment Program Visioning Task Force (VTF) was responsible for developing a forward-looking program that advances the organizational outcomes of the 21st-Century research library. The task force was charged to consider all current and potential ARL assessment-related services, including the goals, outcomes, deliverables, staff, and other resources related to the existing metrics and tools, and to the surveys in the StatsQUAL suite. The Association asked the VTF to write recommendations, presented in this report, for investment, maintenance, and disinvestment of programs, services, and tools as well as for new service areas and foci.