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    In-depth, attribute-by-attribute tables for the most common MedTech term pairs. Each row is sourced from the linked term pages.

    Regulatory

    Emergency Use Authorization(EUA)

    In one line
    FDA authority to permit the use of unapproved medical products, or unapproved uses of approved products, during declared public health emergencies.
    Definition
    Emergency Use Authorization (EUA) is FDA authority under FD&C Act section 564 to authorize an unapproved medical product or unapproved use of an approved product after an applicable section 564(b) declaration and satisfaction of the statutory criteria. An EUA is not FDA clearance or approval. It remains effective until the applicable section 564 declaration terminates or FDA revokes the authorization; it is not automatically ended by expiration of a PHSA public health emergency. Product-specific conditions govern labeling, information for providers and recipients, reporting, and records.
    Why it matters
    Plan for the applicable EUA termination and FDA transition policy rather than assuming a universal transition window. As of November 1, 2026, FDA reports that COVID-19 device EUA declarations will terminate December 26, 2026, and the drug and biologic declaration June 29, 2027. Review individual authorizations and transition policies, including any continued-use provisions for already distributed products.
    Common pitfalls
    • •Treating EUA as approval, labeling, marketing, and reimbursement implications differ significantly from cleared/approved status.
    • •Assuming the end of a PHSA emergency automatically ends an EUA, or assuming all products receive the same transition period.
    • •Failing to follow adverse-event reporting conditions in the individual EUA, which may differ from ordinary requirements.
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    Why compare MedTech terms side by side?

    MedTech terminology is full of pairs that look interchangeable but carry very different regulatory, clinical, and commercial consequences. Picking the wrong framework, pathway, or standard early in a project can add months to a submission, invalidate clinical evidence, or trigger an audit finding. Side-by-side comparison is the fastest way to surface those differences before they become costly mistakes.

    Each comparison on this page pulls from the same vendor-neutral, sourced definitions used throughout the MedTech Terms glossary. You see the one-line summary, the formal definition, why it matters in practice, common pitfalls, and the primary sources (FDA guidance, EU MDR/IVDR articles, ISO/IEC standards, MDCG documents, IMDRF principles) that back each entry. That makes the comparison defensible in regulatory strategy memos, design reviews, and submission narratives.

    Common comparison patterns

    How to use this tool

    Pick term A and term B from the dropdowns, or click a preset above. The URL updates with both slugs so you can bookmark or share the exact comparison with a colleague, a notified body reviewer, or your regulatory consultant. Click Open full page on either side for the complete entry, including FAQs, related terms, and the full citation list. If you are not sure which term to start with, browse the Categories view or the A-Z index.

    MedTech Terms is a vendor-neutral community resource sponsored by Blue Goat Cyber. Definitions are written for educational use and are not legal or regulatory advice.