The U.S. FDA’s new Quality Management System Regulation (QMSR) marks a significant shift in medical device oversight by aligning FDA requirements with the internationally recognized ISO 13485 standard. This transition aims to streamline regulatory expectations while promoting greater global harmonization. The article outlines five key actions device manufacturers should take now: understand how QMSR differs from the current Quality System Regulation, conduct a comprehensive gap analysis against ISO 13485, update documentation and quality procedures, strengthen supplier quality management, and train internal teams on the new framework. Early preparation is essential, as companies that proactively adapt their quality systems will be better positioned to maintain compliance, minimize disruption, and operate more efficiently in an increasingly globalized regulatory environment.