under this MoU, the Division of Chemistry (CHE) and the Division of Chemical, Bioengineering, Environmental and Transport Systems (CBET) at NSF and the Divisions of Physics and Chemistry (PC) and Engineering Sciences (ING 1) at DFG are pleased to announce a Lead Agency Opportunity for Collaborative Research in Chemistry and Chemical Process and Transport Systems. The goal of this Lead Agency Opportunity is to reduce barriers to working internationally by allowing US and German researchers to submit a single collaborative proposal that will undergo a single review process while funding organizations maintain budgetary control over their awards. Proposals eligible for funding consideration through this Lead Agency Opportunity should review the CHE, CBET, PC, and ING 1 program descriptions for research supported through these divisions/organizations. Proposals are expected to adhere to typical proposal budgets and durations for the relevant CHE, CBET, PC, and ING 1 programs from which funding is sought. A list of participating NSF programs can be found at: https://www.nsf.gov/od/oise/IntlCollaborations/Germany.jsp. German researchers are invited to read: www.dfg.de/nsf-che-cbet. Proposals submitted under this Opportunity will be reviewed by either NSF or DFG as the Lead Agency, depending on where the largest proportion of research lies. Proposals must provide a clear rationale for the need for a US-German collaboration, including the unique expertise and synergy that the collaborating groups will bring to the project. The result of the review process will be shared among the appropriate divisions (NSF/CHE and/or NSF/CBET, and DFG/PC and/or DFG/ING 1) before making final recommendations.