21 CFR § 830.20 - Requirements for a unique device identifier.

---
identifier: "/us/cfr/t21/s830.20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 830.20 - Requirements for a unique device identifier."
title_number: 21
title_name: "Food and Drugs"
section_number: "830.20"
section_name: "Requirements for a unique device identifier."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "H"
subchapter_name: "MEDICAL DEVICES"
part_number: "830"
part_name: "UNIQUE DEVICE IDENTIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 331, 352, 353, 360, 360d, 360i, 360j, 371."
regulatory_source: "78 FR 58823, Sept. 24, 2013, unless otherwise noted."
cfr_part: "830"
---


# 830.20 Requirements for a unique device identifier.

A unique device identifier (UDI) must:

(a) Be issued under a system operated by FDA or an FDA-accredited issuing agency;

(b) Conform to each of the following international standards:

(1) ISO/IEC 15459-2, which is incorporated by reference at § 830.10;

(2) ISO/IEC 15459-4, which is incorporated by reference at § 830.10; and

(3) ISO/IEC 15459-6, which is incorporated by reference at § 830.10.

(c) Use only characters and numbers from the invariant character set of ISO/IEC 646, which is incorporated by reference at § 830.10.

[78 FR 58825, Sept. 24, 2013]