CORE SUMMARY / ABSTRACT If MGH is selected, we will manage the Infrastructure and Opportunities Fund (IOF) Core for the Nonhuman Primate Transplantation Tolerance Cooperative Study Group (NHPCSG) program. We will take responsibility for managing the IOF, including disbursement and tracking of IOF funds, establishing an administrative structure to manage the IOF, and reporting on the status of IOF projects and expenditures to the NIAID and NHPCSG Steering Committee.