This document provides guidance on obtaining IRB approval or exemption for human subjects research at Ohio State University. It outlines what constitutes human subjects research and when IRB review is required. It describes the different types of IRB review - full committee review, expedited review, and exempt review. The six categories of research that may be exempt from IRB review are listed. Instructions are provided on completing required training, developing the research proposal and forms, and submitting materials to the appropriate IRB for review and approval before beginning research. Key steps of the IRB process like amendments, continuing review, and final reports are also summarized.