In this paper, we report findings of the DataRes Project, a two-year project funded by theInstitute for Museum and Library Services (IMLS). We examine the perceptions of libraryprofessionals faced with supporting federal funding agency mandates for research datamanagement plans, describe the state of data management requirements at major federal fundingagencies, discuss our findings about the policy landscape at the top National Science Foundation(NSF) and National Institutes of Health (NIH) awardee institutions in the United States, anddescribe examples of robust responses to the needs of researchers for data management plansupport.