Manufacturers should be aware of the limitations of UPC barcodes available. There are basically two categories of UPC barcodes manufacturers can choose. The generic UPC without a company prefix is not registered with GS1. These barcodes are intended for small, local retailers and distributors. If your company’s demand increases for larger sales then you need a GS-1 certified UPC.
If you intend to sell your product to large retailers: Whole Foods, Wal-Mart, Trader Joes, Amazon, etc you will need a GS1 barcode. Contact ALL distributors of your product(s) before you print packaging with the barcode to ensure you meet their requirements.