FDA·10 min read·By Angel Translation Corp.·Updated Jul 2026

FDA 510(k) Submission Language Requirements: What Reviewers Actually Check

What FDA reviewers look for in translated submissions, terminology inconsistencies that trigger rejection, and why 510(k) translation requires domain expertise.

Key points
  • Where the translation requirement comes from
  • Consistency is what gets noticed
  • Traceability
Who this is forRegulatory affairs teams preparing US submissions from non-English source documentation.

Where the translation requirement comes from

FDA submissions are made in English. The translation requirement arises when your underlying material — design history, clinical data, quality records, supplier documentation — was authored in another language and has to be presented in English.

Requirements differ by device class and submission pathway. Confirm the specifics for your submission with your regulatory consultant; this article covers the translation practice, not the regulatory strategy.

Consistency is what gets noticed

A reviewer reads a submission as a set. When the device is described one way in the indications, another in the labelling and a third in the test reports, the discrepancy becomes a question — and questions consume review cycles.

Most avoidable friction we see comes from documents translated at different times by different hands, with no shared terminology. The fix is unglamorous: lock the terms first, against your existing approved labelling.

Traceability

A quality system expects a documented process with accountable steps. Text of unclear provenance — including unreviewed machine output — is harder to defend if the process is examined, regardless of whether the text happens to be correct.

Regulatory content therefore runs through domain expert review and a QA audit, and the process is documented.

Questions

Requirements vary by submission type and are set by FDA, not by your language vendor. Confirm what your specific pathway requires with your regulatory consultant, and tell us the answer so the deliverable matches it.
Sometimes, but partial translation is a common source of inconsistency because the untranslated remainder still carries terminology. If you go partial, keep it against the same termbase.
Reviewers with relevant biomedical or clinical background, not general linguists. Judging whether a clinical term is correct in context is a domain judgement.

Related reading

CECE Certification Under MDR and IVDR: Language Compliance ChecklistIFUIFU Instructions for Use: Why Mistranslation Creates Product Liability ExposureComplianceGlobal Language Compliance Calendar: Regulatory Deadlines by Market

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