The QMSR

QMSR: The FDA’s Quality Management System Regulation

The Quality Management System Regulation (QMSR) represents one of the most significant regulatory changes affecting medical device manufacturers in decades. Issued by the U.S. Food and Drug Administration (FDA), the rule modernizes the agency’s quality system requirements by incorporating ISO 13485:2016 into the FDA regulatory framework in CFR Title 21 Part 820.

For manufacturers, the transition from the Quality System Regulation (QSR) to the QMSR is more than a regulatory update. It reflects a broader shift toward global harmonization, risk-based quality management, and stronger integration between regulatory requirements and internationally recognized quality management standards.

This page serves as the central hub for QMSR information, bringing together regulatory background, clause-level guidance, implementation strategies, and practical resources for manufacturers preparing for the transition.

What Is the QMSR?

The Quality Management System Regulation revises FDA’s device quality system requirements under 21 CFR Part 820 by aligning them with ISO 13485:2016 – Medical devices: Quality management systems – Requirements for regulatory purposes.

Under the new framework FDA adopts ISO 13485 as the foundation for device quality system requirements, although certain FDA-specific provisions remain in Part 820. To comply, medical device manufacturers who sell their products in the United States must integrate both ISO 13485 and applicable FDA regulatory requirements into their quality systems.

The result is a regulatory structure that promotes international consistency while maintaining FDA oversight authority.

Why the QMSR Matters

For device manufacturers, the QMSR has several important implications.

Global Harmonization

Aligning FDA quality system requirements with ISO 13485 reduces duplication and helps manufacturers maintain a single quality system capable of supporting multiple regulatory jurisdictions.

Risk-Based Quality Management

ISO 13485 emphasizes risk management throughout the product lifecycle, reinforcing the importance of design controls, process validation, supplier oversight, and post-market surveillance.

Regulatory Efficiency

For manufacturers already certified to ISO 13485, the QMSR provides an opportunity to better integrate regulatory compliance into existing quality management systems rather than maintaining parallel structures.

Navigating the QMSR

The QMSR framework closely follows the structure of ISO 13485, which organizes quality management system requirements into several key sections.

QSR-to-QMSR provides detailed guidance for each major area of the regulation.

Clause-Level Guidance

Each section below links to a dedicated page explaining the requirements, implementation considerations, and inspection expectations for that clause.

Clauses 1–3: Scope, Normative References, and Terms

Clause 4: Quality Management System

Clause 5: Management Responsibility

Clause 6: Resource Management

Clause 7: Product Realization

Clause 8: Measurement, Analysis, and Improvement

Related resource pages explain both the ISO 13485 requirements, their regulatory context within FDA oversight, and guidance for establishing and maintaining compliance with them.