GS1.com in Dayton, OH (800-543-8137), owns the UPC symbology. Contact them for your license of a of use for a control number. To these numbers you may add a five digit product number that is used to identify individual products. You may choose your product numbers in a way that best suits your record keeping needs.

When ordering your UPC bar code from us, please provide us with both your six digit manufacturer's number and the five digit product identification number. We will supply the 12th digit (also known as the modulo check digit, or mod check). This digit is figured through a mathematical calculation based on the eleven numbers you have given us. We have provided a file, in PC format, which you are free to download to your own personal computer so you can identify individual mod check digits.

Below we have supplied examples for you to see the different sizes and formats.

	UPC Bar Code, 80% (Version E) for use with a 0 Number System Character
UPC Bar Code. 80% Record Format, Truncated
	UPC Bar Code, 100%
UPC Bar Code, 80%

Note: Truncation is not advised by GS1 but may be necessary in cases of reduced image availability. In such cases, one half inch in height is the recommended minimum allowed.