{"data":{"id":"us/21-cfr-801.35","jurisdiction":"us","citation":"21 CFR 801.35","heading":"Voluntary labeling of a device with a unique device identifier.","body":"(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.\n(b) A device may bear both a Universal Product Code (UPC) and a UDI on its label and packages.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 801—LABELING","Subpart B—Labeling Requirements for Unique Device Identification"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"826c2150f975b73d3c23001dc6b7d34999d0621a8567671df5ab07bf84a8c78d","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-801.30","next":"us/21-cfr-801.40"},"notice":"GroundRules: Original legal text. Not legal advice."}