FDA QMSR Alignment to ISO 13485: Key Changes Ahead

While the industry has been anticipating alignment with ISO 13485 for years, the final rule brings both clarity and new expectations that every device manufacturer must understand.

Caitlin Kinard, Senior Quality Specialist
FDA QMSR to align to ISO 13485

Why the FDA is Moving to QMSR 

The FDA’s revised Part 820, titled Quality Management System Regulation (QMSR), incorporates ISO 13485:2016 by reference, aligning the United States (U.S.) requirements with the international consensus standard used by regulators worldwide. 

This alignment is intended to: 

  • Harmonize global regulatory expectations 
  • Streamline compliance for companies operating globally 
  • Modernize the U.S. quality system framework 
  • Reduce burden and promote consistency internationally 

QMSR may be viewed as a welcome simplification for manufacturers already certified to ISO 13485; however, there is a cautionary tale: ISO 13485 certification does not guarantee FDA compliance. In preparation for these changes brought by QMSR, we’ll highlight a few focus areas and reiterate some more engrained quality concepts. 

What’s Changing

  • Framework

    ISO 13485:2016 becomes the foundation of the FDA’s quality system requirements. Most of the existing QSR text will be removed or replaced with reference to this ISO standard. The learning curve will be significant for those companies not already ISO 13485-certified; however, even ISO-certified organizations can expect FDA-specific requirements to remain intact.

  • Updated Terminology and Structure

    The FDA will align most terms and definitions to those presented in ISO 13485:2016. For example, “Medical Device File” used in ISO 13485:2016 encompasses all device documentation in FDA-centric terms, such as Device Master Record (DMR), Design History File (DHF), and Device History Record (DHR). Keep hierarchy in mind, though, as the terms within the FD&C Act (Section 201) will reign. Definitions of ISO 13485:2016 terms that are superseded by the FDA (e.g., device, labeling) or additional terms that are not defined in ISO 13485:2016 (e.g., component, HCT/P) are contained in 21 CFR 820.3.

  • Risk Management

    In the QSR, risk was implied and indirectly tied to design controls. In ISO 13485:2016, use of risk principles continues to be essential. Risk will become broadened and engrained in even more programs and elements across the QMS, with expectations to use risk-based thinking in programs like change management, corrective and preventative actions (CAPA), and supplier and purchasing controls.

  • Inspection Program

    We expect changes to the FDA inspection program, as the agency has confirmed it will withdraw the current Quality System Inspection Technique (QSIT) on 02 February 2026, and replace it with a new inspection process aligned to QMSR. The new program will be available in a revised version of the Compliance Program (CP), Inspection of Medical Device Manufacturers (7382.845). We are waiting for this publication to become available on the FDA CDRH Compliance Program site no later than 02 February 2026.

  • Internal Records: Protection from Inspection?

    Certain types of documents formerly exempt from FDA inspection in the QSR (§ 820.180(c)) are no longer maintained in the QMSR. This means that the FDA will have the authority and intention to inspect records related to management review, quality audits, and supplier audit documentation. According to the FDA, as manufacturers have been routinely providing these documents to other regulators, this change should not be an additional burden.

What’s Staying the Same

  • Design Controls

    Design controls remain a cornerstone of FDA expectations. FDA continues to emphasize traceability, integration of risk management principles across the QMS, and documentation of product development.

  • Expectations for Packaging and Labeling Controls

    ISO 13485 includes general labeling requirements, but FDA enforces detailed controls, including aspects such as label integrity, inspection, prevention of mix-ups, and U.S.-specific contents (e.g., UDI, warnings). Look to the new text covered in 21 CFR 820.45.

  • Recordkeeping Requirements and Product Complaints

    FDA expectations exceed ISO 13485, particularly with respect to complaint files, MDR-related documentation (Part 803), correction and removal records (Part 806), and traceability records for certain device classes. These FDA requirements will remain enforced to ensure compliance with U.S. recordkeeping regulations. With regard to product complaint files, look to the more prescriptive text in amended section, 21 CFR 820.35.

  • Inspection Requirements

    The FDA will continue to perform inspections to evaluate compliance with the requirements of its regulations. While ISO 13485 certification may help demonstrate a well-established quality system and reduce inspection burdens internationally, it does not replace FDA inspections or ensure FDA compliance.

How to Prepare and How Kymanox Can Help

We are already guiding our clients through the transition. Here’s what we recommend: 

  • Achieve Understanding

    Review the final QMSR rule and how it incorporates ISO 13485:2016. For combination product manufacturers, conforming edits are being made to 21 CFR Part 4. 

  • Conduct a QMSR Gap Assessment 

    Even ISO-certified companies will have gaps, especially around FDA-specific expectations. 

  • Update SOPs and Training to Strengthen Risk and Design Documentation 

    Remediate gaps from the assessment. Ensure risk and design documentation aligns with FDA expectations as scrutiny in these areas will remain high. 

  • Prepare for QMSR-Aligned Inspections 

    Ensure your inspection readiness program reflects the new regulatory structure. Adapt your approach based on available information from FDA on the inspection methodology (e.g., QSIT-style thinking) adapted for QMSR. 

Whether you need a quality system overhaul or targeted support, we’re ready to partner with you. 

Check our our key takeaways from the recent FDA Townhall on QMSR

Preparing for QMSR inspections or navigating post-effective-date expectations?

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