The Legal Landscape of Barcode Usage: What You Need to Know

Understanding Barcode Legality

While the technology behind barcodes is open and free to use, the numbers encoded within them—specifically for retail products—are governed by strict rules and legal frameworks. This article provides an educational overview of these considerations.

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Consult a qualified attorney for specific legal guidance.

1. The GS1 Monopoly and Licensing

GS1 is the sole official issuer of Global Trade Item Numbers (GTINs), which include UPC and EAN codes. When you get a barcode from GS1, you are not buying the number; you are licensing the right to use a specific Company Prefix.

The Legal Implication: If you use a GS1 barcode number that is licensed to another company, you are misidentifying your product. Major retailers verify GTINs against the GS1 database. If your product's barcode belongs to someone else, the retailer will likely reject your product, and you could face legal action from the actual prefix owner for misrepresentation.

2. The "Reseller" Gray Area

Before 2002, the Uniform Code Council (the predecessor to GS1 US) sold prefixes outright rather than licensing them. A class-action lawsuit settlement allowed companies that purchased prefixes before August 28, 2002, to own them in perpetuity without paying renewal fees.

Many of these companies now resell individual barcode numbers from their owned prefixes.

The Legal Implication: While buying from a legitimate reseller is technically legal and much cheaper, it carries risks. The GS1 database will show the original prefix owner's name, not yours. Amazon, Walmart, and other major retailers increasingly require the brand name on the product to match the brand name registered in the GS1 database. If you use a resold barcode, your product may be rejected by these platforms.

3. Internal Use is Unrestricted

If you are generating barcodes solely for internal use—such as tracking assets within your own warehouse, managing a private library, or ticketing an event—you are free to use any numbering system and any barcode format (like CODE128 or CODE39) without any legal restrictions or licensing fees.

4. Trademarks and Packaging

A barcode itself is not generally trademarked, but the packaging it sits on is. Ensure that when you apply a barcode to your product, you are not obscuring mandatory legal information (like ingredients, warnings, or origin labels) required by consumer protection laws.