In a closed environment you can generate barcodes of any type for internal use. If you need to generate barcodes for commercial use you need to apply for a manufacturer number from GS1 (outside of the USA) or GS1 US (within the USA).
GS1, a not-for-profit organisation, among many other things, are responsible for assigning a prefix to use with your barcode numbers to ensure that they are unique. A list of regional GS1 offices can be found on their website.
Keep checking back for more interesting barcode facts!
Posted: 04-03-2011 08:22:56