The National Science Foundation (NSF) is offering a grant opportunity titled the "NSF Directorate for Engineering - UKRI Engineering and Physical Sciences Research Council Lead Agency Opportunity." This initiative aims to facilitate international collaboration by allowing US and UK researchers to submit a single collaborative proposal for review, thereby reducing barriers to joint research efforts. Proposals should focus on collaborative research in areas intersecting with the NSF's divisions of Chemical, Bioengineering, Environmental, and Transport Systems (CBET), Civil, Mechanical and Manufacturing Innovation (CMMI), and Electrical, Communications and Cyber Systems (ECCS), as well as the UK EPSRC's Engineering, ICT, and Manufacturing themes. The estimated total program funding is $6 million, with approximately 10 awards expected, and proposals can be submitted at any time. For further assistance, applicants can contact NSF grants.gov support at grantsgovsupport@nsf.gov.