Key themes: IEC 60601/80601, IEC 61326-2-6, ISO 15223-1 A1:25, & ASCA considerations

In late December 2025, the FDA expanded its Recognized Consensus Standards Database, adding more than 100 new or updated standards. Some are eligible for use under the ASCA Program, while others carry important implications for design, testing, labeling, and overall regulatory strategy.

Regulatory expectations around standards are shifting earlier in the product lifecycle. Standards are no longer something teams can simply “handle at test.” Reviewers increasingly expect standards interpretation, risk decisions, and test strategies to be visible and justified during design reviews and technical documentation development. This reinforces why understanding not just which standards are recognized, but how they are recognized and applied, matters more than ever.

What the latest FDA update included

The scope of this database expansion spans a wide range of medical device technologies, including medical electrical equipment, IVDs, software-driven devices, imaging systems, interoperability standards, and labeling-related standards.

Beyond simply identifying newly recognized standards, the changes highlight how recognition status, ASCA eligibility, and extent of recognition can materially affect how conformity is demonstrated, how evidence is presented, and how submissions are reviewed.

Over the past year, I’ve been sharing what I’m seeing based on feedback gathered from many sources, including my Eisner Safety Consultants experts and discussions across the community with regulators, standards developers, test labs, and manufacturers. The goal is practical clarity: what changed, what it means, and what teams should do next as they navigate evolving standards expectations and regulatory requirements.

IEC 60601 / 80601 standards in the update

For manufacturers of medical electrical equipment, the December 22, 2025 update includes several standards from the IEC 60601 and 80601 series. These standards remain central to demonstrating basic safety and essential performance for medical electrical equipment. However, recognition alone does not mean every clause or requirement is fully accepted without qualification.

Standards called out in the December 22, 2025 update
(from the FDA database extract)

EMC context within the IEC 60601 / 80601 framework

IEC 60601-1-2 remains the primary EMC standard within the IEC 60601 series. However, other IEC 60601 standards can and do include EMC-related requirements. Applicability must be assessed standard by standard, based on the specific requirements of each applicable document.

This context becomes especially important when considering how EMC expectations are addressed across different standard families, including IVD-specific EMC requirements discussed next.

IVD EMC and IEC 61326-2-6

A notable change reflected in the FDA Recognized Consensus Standards Database is the inclusion of IEC 61326-2-6 Edition 4 as a Recognized Consensus Standard, with ASCA eligibility under the ASCA Program, effective July 28, 2025.

This is significant because IEC 61326-2-6 is the primary EMC standard used to demonstrate electromagnetic compatibility for IVD medical equipment, and its inclusion under ASCA directly affects how EMC conformity evidence may be presented in FDA submissions.

However, ASCA eligibility alone does not guarantee streamlined review.

For manufacturers intending to rely on ASCA pathways for IVD EMC:

• Test lab scope must be verified as active for the specific standards and applicable editions being claimed.
• If a standard or edition is not within a laboratory’s ASCA-accredited scope, manufacturers cannot rely on an ASCA Summary Test Report for that standard.
  • In those cases, full EMC test reports remain necessary, and FDA review timelines are typically longer.

As of early January 2026, there are no ASCA-accredited laboratories that reflect IEC 61326-2-6 Edition 4 within their active scope. This creates a practical timing and planning consideration for manufacturers preparing IVD submissions that intend to leverage ASCA.

This gap does not change the applicability of IEC 61326-2-6 itself, but it does affect how conformity evidence can be packaged and reviewed until laboratory scopes are updated.

ISO 15223-1 Amendment 1:2025 and labeling implications

Authorized Representative symbol changes and labeling impact

ISO 15223-1 Amendment 1:2025 introduces a substantive correction to the requirements for the Authorized Representative symbol that has direct regulatory and labeling implications across multiple markets.

This change is implemented through a revision to Clause 5.1.2, which governs how the Authorized Representative symbol is applied.

Clause 5.1.2 – prior to Amendment 1:2025

“This symbol shall be accompanied by the name and address of the authorized representative, adjacent to the symbol.”

Under this wording:

• The symbol itself did not explicitly encode the jurisdiction
• The convention of using “EC REP” persisted in practice, even after the transition from the MDD & IVDD to EU MDR and IVDR
• This created ambiguity for non-EU markets and for products marketed globally under different regulatory frameworks

Clause 5.1.2 – after Amendment 1:2025

“The [XX] text of the symbol shall be replaced by either the two-letter country code or the three-letter country code defined in ISO 3166-1 or other text required by the authority having jurisdiction.

This symbol shall be accompanied by the name and address of the authorized representative adjacent to the symbol.”

Key changes introduced by this amendment:

• The Authorized Representative symbol must identify the jurisdiction represented
• The jurisdiction identifier is no longer implicit or assumed
• Country-specific representation is now explicitly required using ISO 3166-1 codes or authority-mandated text

This change aligns the symbol requirements with:

• EU MDR and IVDR expectations for EU Countries
• Non-EU regulatory frameworks that require local authorized representation
• Global labeling clarity for multi-market products

Practical application of the revised requirement

International example

Used for countries outside the EU, such as Switzerland or the United Kingdom.

Examples:

• CH REP for Switzerland
• UK REP for the United Kingdom

Convert from EC Rep to International two-letter country code Authorized Representative Symbol

EU example

Used for EU Member States.

Convert from EC Rep to EU Rep Authorized Representative Symbol

Labeling and change-control implications

Symbol changes cascade into artwork, IFUs, packaging, and labeling change control. This affects and has significant impact on:

• Device labels
• IFUs
• Packaging artwork
• Labeling control procedures

These changes must be assessed and implemented through formal labeling change processes, not treated as isolated graphic updates.

Posted on LinkedIn June 19, 2025. Updated with extra blog content June 25, 2025.

Over the last two weeks – and with a Friday night (6/20/25 Geneva time – late) finale still to come – we’ve seen CD1s and CD2 (WG 47 ONLY) fly out for Fragments 5, 6, 7, 8, 10, 11, and 12 from WG 41 through WG 48, but for WG 45.

This is not just standards spring cleaning – these are foundational changes to the IEC 60601-1 General Standard, folding the Collateral standards into the core. If you have medical electrical equipment, medical electrical systems or software SaMD or SiMD you need to be aware of these changes. If you’re a manufacturer, test lab, trade association, Notified Body, Regulator or other interested party who owns a risk file… you need to review this.

These fragments cover hazards related to: • Electrical, mechanical, thermal, and fire • Software & PEMS (SaMD, SiMD, firmware, OS…) • EM Disturbance, wireless coexistence, ionizing radiation, and electromagnetic exposure (EMF)

The International comment deadlines start closing August 29th, with more due by September 12th. National deadlines close much sooner (does your summer holiday schedule conflict?)

Don’t wait for the FDIS – get involved now or get caught off guard later.


Read the full breakdown of all Working Groups, due dates, and what you should do now:

Here’s the who’s who of the Working Groups behind the fragments with CD1 to issue 20 July:

• WG 41 – PEMS (e.g., SaMD (Software as a medical device), SiMD (Software in a medical device), firmware, software, apps, OS, drivers) related hazards WG 41 link

• WG 42 – Electrical hazards WG 42 link

• WG 43 – Mechanical hazards WG 43 link

• WG 44 – Thermal and fire hazards WG 44 link

Other Fragments CD1s & CD2 have recently published – clock ticking to get your comments in:

• Fragment 11 – WG 47: Electromagnetic exposure hazards (not optical or ionizing but including SAR) WG 47 link CD2, closes 29 August

• Fragment 10 – WG 46: Ionizing radiation hazards WG 46 link CD1, closes 5 September

• Fragment 12 – WG 48: Electromagnetic disturbances (including wireless coexistence) WG 48 link CD1, closes 5 September

The early pack of CD1 Fragments released late last year

Fragments 1–4 and 11 from WG 37–40 & WG 47 were released as CD1 back on December 6, 2024, with comments closing February 28, 2025. You can still access them if you’re a National Committee member for SC62A or a WG participant. If not, consider joining — this is a major transformation, and early awareness = better preparation. Access link

Here’s a handy summary table of the IEC 60601 Fragments, their WG #s, their titles, the issue & close dates & more.

Who Should Be Reviewing

• Design and Systems engineers
• Risk management experts/leaders
• Electrical & mechanical designers
• Software designers (SaMD/SiMD, firmware, OS)
• EMC/EMF compliance leads
• Compliance engineers
• Regulatory and quality teams
• Usability & human factors engineers
• Test labs
• Trade Associations
• Regulators
• Notified Bodies
• Other Interested Parties

What You Need to Do

1. Review the Drafts & the 4th ed. Design & Architecture Specs Now • Assign key experts by hazard/WG • Map against your design controls: Design Spec • Understand the architecture spec: Architecture Spec
2. Track IEV Part 880 Terms • Stay aligned with the evolving definitions: Terms & Definitions
3. Analyze Impact to Products • Run gap assessments • Identify implications for design, testing, and documentation
4. Submit Comments • Through your National Committees (ANSI, BSI, DIN, etc.) • Clear, technically sound feedback = meaningful influence
5. Update Design & Risk Inputs • Don’t wait for the final version to start aligning
6. Integrate Into Product Roadmaps • Work with R&D, QA/RA, and exec sponsors • Flag projects needing early adaptation
7. Engage the Right Experts • Join WGs or partner with someone who’s inside () • Stay active – your input now shapes what becomes final
8. Invest in Training • Get smart now to avoid surprises later

Don’t wait for the FDIS – get involved now or get caught off guard later.

Need help with standards?

We provide support for your design and development process for regulatory submissions.? Eisner Safety Consultants can help by

• Assisting with strategic compliance planning for your medical electrical product lines,
• Providing regulatory support when FDA or a regulator asks technical questions on your submission.
• Identification of applicable standards, laws, regulations, guidances, and directives up front to support your design process effectively.
• Design Documentation Reviews providing expert analysis supporting the design development process to avoid unnecessary design and development delays.
• We provide EU, US, and other countries regulatory requirement reviews of standards, laws, directives, and guidance.
• Providing support with Swiss MedDO, EU MDR, clinical evaluation assessment, NB remediation, STEDs, and more.
• Interfacing with test houses for medical safety, EMC and arrange other testing.

Feel free to schedule a web meeting with Leo or contact us.

Join me, Leo Eisner, The IEC 60601 Guy, as I lead an interactive and fun workshop at the 10X Medical Device Conference in Newport Beach, Ca on May 7 – 8, 2025. Turn Medical Device Standards into Your Competitive Advantage, and discover practical strategies to leverage standards, avoid costly errors, and accelerate your product development cycle.

Don’t make the 5 costly mistakes companies make with Medical Device Standards. Learn from the IEC 60601 Guy himself.:

• Late Identification of Applicable Standards: Leads to expensive redesigns and delayed timelines
• Ignoring Expert Standards Guidance: Results in regulatory rejections and costly resubmissions
• Unprepared Risk Management File for Testing: Risks unnecessary costs due to lack of strategic planning for compliance.
• Unprepared Regulatory Submissions: Leads to costly setbacks and market-entry delays
• Underestimating Education and Training: Creates knowledge gaps, increasing errors and compliance risks.

I want to thank Sean Smith and his team from 10X for all his help and dedication for putting on this event. He is doing an amazing job and please contact him if you are interested.

Need help with standards?

We provide support for your design and development process for regulatory submissions.? Eisner Safety Consultants can help by

• Assisting with strategic compliance planning for your medical electrical product lines,
• Providing regulatory support when FDA or a regulator asks technical questions on your submission.
• Identification of applicable standards, laws, regulations, guidances, and directives up front to support your design process effectively.
• Design Documentation Reviews providing expert analysis supporting the design development process to avoid unnecessary design and development delays.
• We provide EU, US, and other countries regulatory requirement reviews of standards, laws, directives, and guidance.
• Providing support with Swiss MedDO, EU MDR, clinical evaluation assessment, NB remediation, STEDs, and more.
• Interfacing with test houses for medical safety, EMC and arrange other testing.

Feel free to schedule a web meeting with Leo or contact us.

Leo Eisner, The60601Guy will be visiting London in October. You have the chance to sit down with me, The60601Guy, have a cup a coffee or a beer and talk IEC60601, design for compliance, and standards that apply to your device. I have time slots open on 7, 8, and 11 of Oct. Or join me for a dinner on the 8 or 11 Oct.

Meet me in London – I want to hear from you the week of 7 Oct. These two hour slots are limited before they are gone, 𝗯𝗼𝗼𝗸 𝗻𝗼𝘄 𝗼𝗻 𝗺𝘆 𝘀𝗽𝗲𝗰𝗶𝗮𝗹 𝗰𝗮𝗹𝗲𝗻𝗱𝗮𝗿 for 𝗺𝘆 𝗟𝗼𝗻𝗱𝗼𝗻 𝘃𝗶𝘀𝗶𝘁. I’d love to chat!

Let’s connect, and explore how we can support your company with our international team of compliance & regulatory experts from Eisner Safety Consultants. I’m eager to learn what you’re working on and how you’re driving change and innovation in the industry, and how we can support you to get you to market faster.

Let’s meet up! 𝗕𝗼𝗼𝗸 𝘁𝗶𝗺𝗲 𝗼𝗻 𝗺𝘆 𝘀𝗽𝗲𝗰𝗶𝗮𝗹 𝗰𝗮𝗹𝗲𝗻𝗱𝗮𝗿 for 𝗺𝘆 𝗟𝗼𝗻𝗱𝗼𝗻 𝘃𝗶𝘀𝗶𝘁.

On December 20, 2021 the FDA Released their Recognition List Number 057 through their online db. With that publication of list 057 two, EMC IVD standards were added to the list.
But the FDA only Partially Recognized IEC 61326-1:2020 and IEC 61326-2-6:2020.
What does that mean to IVD EMC tests?
We have done a detailed analysis that has been confirmed by FDA’s EMC experts to let you know what EMC tests you need to conduct in order to meet both FDA and EU requirements for IVD equipment.

If you have IVD devices that you are submitting to the FDA you will need to be aware of these requirements. Rely on our experts for this analysis. We have had discussions with the FDA to understand the issues so we can explain this information.

Click here to link to the order page.