This legislative proposal, known as the "Iranian Terror Prevention Act," directs the Secretary of State to designate a comprehensive list of organizations as foreign terrorist organizations (FTOs) within 90 days of its enactment. The specified groups include the Houthis, the Badr Organization, and various other brigades and units, along with any foreign entity or organization that is an agent of, affiliated with, or controlled by the Islamic Revolutionary Guard Corps. Furthermore, the bill mandates that the President determine within 60 days whether to impose sanctions on a subset of these organizations, utilizing authorities under Executive Order 13224, which targets individuals and entities involved in terrorism. The legislation also establishes reporting requirements, obligating the Secretary of State to submit semi-annual reports to Congress on new entities meeting FTO designation or sanctions criteria, and requiring the President to report on sanction determinations for the listed organizations, providing detailed explanations if any are not sanctioned.