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Prior Sanctioned Substance


A substance whose use in or on food is the subject of a letter issued by FDA or USDA offering no objection to a specific use. The prior sanction exists only for a specific use of a substance in food delineating level(s), condition(s) and product(s) set forth by explicit approval by FDA or USDA prior to September 6, 1958. Some prior sanctioned substances are codified in 21 CFR Part 181.