United States requires clear date marking with either "best before" or "use by" dates depending on food safety risks.
Date marking helps consumers know when food is safe to eat and when quality may deteriorate. There is no general federal date-labeling requirement — the only mandatory date is "Use By" on infant formula (21 CFR 107.20). Other dating is voluntary and state rules vary; the FDA encourages the standardised "Best If Used By" wording for quality dates.
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Start Your Compliance CheckThere is no general federal date-labeling requirement — the only mandatory date is "Use By" on infant formula (21 CFR 107.20). Other dating is voluntary and state rules vary; the FDA encourages the standardised "Best If Used By" wording for quality dates.
Use by is for safety-critical foods; best before is for quality.
Last updated: 2026-07-20
Disclaimer: This information is for guidance only and does not constitute legal advice. Always consult official regulations and seek professional legal advice for specific compliance questions.
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