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U.S. Department of Health and Human Services

Threshold of Regulation (TOR) Exemptions

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TOR number 2021-004

Threshold of Regulation Exemptions are generally applicable and are effective for the food contact substance (FCS) for the listed intended use regardless of manufacturer or supplier.
Food Contact Substance: Chromium coated with a layer of tungsten carbide-chromium and a subsequent layer of tungsten carbide-amorphous hydrogenated carbon
Use Limitations*: For use as a coating on repeated-use metal component parts in food processing and packaging machinery and equipment to reduce surface wear, friction, and adhesion to food, except for use in contact with infant formula and human milk. Such uses were not included as part of the intended use of the substance in the TOR exemption.
Requestor: IHI Ionbond AG and its affiliates

*For references to food types and conditions of use, see Food Types & Conditions of Use for Food Contact Substances.