The document discusses the history and purpose of Institutional Review Boards (IRBs) and their role in protecting human subjects involved in research. It outlines key events that led to the establishment of ethical standards like the Belmont Report and the Common Rule. IRBs are tasked with reviewing research proposals to ensure the ethical treatment of participants based on principles of respect for persons, beneficence, and justice. Researchers must obtain approval from an IRB before conducting studies with human subjects.