The purpose of this FOA is to provide network and infrastructure support to foster development of novel interdisciplinary research approaches on aging research related to multiple chronic conditions (MCCs). This FOA uses the Resource-Related Research Project activity code (R24) to support research networks that will advance interdisciplinary collaboration through activities such as meetings, conferences, data exchange, small scale pilots, short term training opportunities, visiting scholar programs and dissemination activities to encourage growth and development in the science related to older adults with MCCs.