NIH policy mandates use of a single IRB (sIRB). OHRP Common Rule regulations will expand the requirement to all federal research in January 2020, and the FDA may issue similar requirements as part of regulatory harmonization. All this means that research sites will increasingly need to work with multiple IRBs, not just the local IRB. This transition will impact many aspects of how research sites conduct research and interact with the IRB, especially for sites previously accustomed to working with only a local IRB. In this webinar, James Riddle will discuss the implications for research sites in this new era of mandated sIRB.