The study examines Indonesia's Safeguard Regulations, focusing on the Galvalume Safeguard Decision by KPPI. The regulations allow for applying safeguards to exporting countries, with specific requirements for evidence submission and review timelines. In the case of Galvalume Safeguard Measures, KPPI failed to adequately prove unforeseen developments and did not meet WTO Safeguard Agreement requirements. To challenge KPPI's decision, WTO members can bring the case to the WTO Dispute Settlement Body. It is crucial to argue that Safeguard Measures can harm the national economy during investigations, involving domestic importers as third-parties. The paper provides a legal basis for implementing strategies in line with WTO and Indonesia Safeguard Regulations.