funding opportunities, including the EPSCoR RII: EPSCoR Research Fellows program, is described on theNSF EPSCoR website. EPSCoR RII: EPSCoR Research Fellows directly aligns with the NSF EPSCoR strategic goal of establishing sustainable Science, Technology, Engineering, and Mathematics (STEM) professional development pathways that advance workforce development and effects engagement in STEM at national and global levels. EPSCoR RII: EPSCoR Research Fellows provides awards to build researchcapacityin institutions and transform the career trajectories of investigators and further develop their individual research potential through collaborations with investigators from the nation’s premier private, governmental, or academic research institutions and/or centers. The fellowship provides opportunities to establish strong collaborations through extended or periodic collaborative visits to a selected host site.Through collaborative research activities with the host site, Fellows will be able to learn new techniques, develop new collaborations, advance existing partnerships, benefit from access to unique equipment and facilities, and/or shift their research toward potentially transformative new directions. The experiences gained through the fellowships are intended to have lasting impacts that will enhance the Fellows’ research trajectories well beyond the award period. The benefits to the Fellows are also expected to improve the research capacity of their institutions and jurisdictions more broadly. EPSCoR Research Infrastructure Improvement (RII): EPSCoR Research Fellows offers the following two tracks: 1)EPSCoR Research Fellows: NSF; and 2) EPSCoR Research Fellows: @NASA  While the two tracks have similar goals, EPSCoR Research Fellows: NSF is open to a broad community and EPSCoR Research Fellows: @NASA supports faculty from eligible institutions (See Section"IV. Eligibility Information" for more details) to collaborate with researchers at the National Aeronautics and Space Administration (NASA) research centers. PIs who are eligible for both tracks may apply for only one track per competition cycle. Proposals from both tracks are submitted to and merit reviewed by NSF. Awards in the EPSCoR Research Fellows: @NASA track are referred to NASA EPSCoR for distribution of additional NASA funds and other needed NASA coordination required for the award. In both tracks, the EPSCoR RII: EPSCoR Research Fellows program provides opportunities for the participation of one trainee, who must be an undergraduate or graduate student enrolled full-time in an accredited degree program, or a postdoctoral researcher from an EPSCoR jurisdiction. Staff members, such as technicians or lab assistants could be considered as trainees when properly justified.