Voluntary labeling of a device with a unique device identifier.
21 C.F.R. § 801.35
in effectEffective: 2024-07-01(a) The labeler of a device that is not required to bear a unique device identifier (UDI) may voluntarily comply with § 801.20. If a labeler voluntarily includes a UDI for a device, the labeler may voluntarily provide information concerning the device under subpart E of part 830 of this chapter.
(b) A device may bear both a Universal Product Code (UPC) and a UDI on its label and packages.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
