The Food and Drug Administration's (FDA), Center for Drug Evaluation and Research (CDER), Office of New Drugs (OND), is announcing this Funding Opportunity Announcement (FOA) for a Cooperative Agreement. The proposed work directly supports the U.S. FDAs stated goal of protecting public health from unacceptable risks from nitrosamine impurities in human drugs. Although significant experimental and policy/regulatory initiatives have been undertaken in this area, there remains a need for further research into and development and refinement of translational and implementable practices that will protect the public against nitrosamine risks while ensuring continued safe access to critical therapeutic drugs. The aim is to improve the safety of human drugs with potential nitrosamine impurity liabilities. In addition to the work outlined above, the award recipient will assess how best to ensure that this research and practices development continues among industry members, non-profits, and/or academic institutions once the FDA funding for this cooperative agreement ends.