The purpose of this legislation, known as the Iranian Terror Prevention Act, is to officially designate certain organizations as foreign terrorist organizations (FTOs) and to impose sanctions on them. The goal is to combat terrorism linked to these groups, particularly those associated with Iran and its military forces. Key provisions of the Act include a requirement for the Secretary of State to designate specific organizations as FTOs within 90 days of the law's enactment. The organizations listed include various brigades and units that are connected to Iranian interests and activities.