Frequently Asked Questions
What is a barcode?
A bar code is simply a non-human readable symbol used to convey data.
What is a GTIN?
GTIN describes a family of GS1 (formerly EAN.UCC) global data structures that employ 14 digits and can be encoded into various types of data carriers. For additional information, visit www.gtin.info .
What is the Data Hub?
The Data Hub is a tool included with your GS1 membership and uses your GS1 Company Prefix (the number that uniquely identifies your company) to create a bar code number (GTIN) to uniquely identify your products. For new members, GS1 US offers training webinars for the Data Hub for $79. Companies who use the GS1 Barcode Service are not required to purchase the webinar since UPC management and Data Hub uploads are included. Please call us at 800-662-0701 x220 or visit http://www.barcode.graphics/landing-gs1-barcode-service/
Can I use a company prefix from another company?
The company prefix uniquely identifies your company and is used in other barcode marking and communication requirements for most retailers. Every company using the UPC system should use their own prefix to avoid compliance fees from retailers.
Are there specific rules for assigning product numbers?
Every unique item requires an individual item number. GS1 recommends that companies do not put logic into their number assignment, but rather use serial numbers to guarantee uniqueness.
Can I reuse a UPC number?
Aside from assigning company prefixes, the GS1 creates the standards for item and logistical bar coding. The GS1 General Specification covers all the rules for allocating numbers. Access to this standard is included with your GS1 US membership.
Are there location requirements for UPC bar codes?
Aside from assigning company prefixes, the GS1 creates the standards for item and logistical bar coding. The GS1 General Specification covers all the location guidelines for UPC/EAN marking. Access to this standard is included with your GS1 US membership.
What are the sizing requirements for UPC codes?
The standard magnification for (100%) UPC symbols requires a total area of 1.46″ x 1.020″. UPC sizes can range between 80-200%. Symbols less than 80% (1.1875″ x .813″) may not scannable by retailers.
Can bar codes be printed in color?
Bar codes can be printed in colors other than black and white. The bars of a symbol should can either be black or blue. Acceptable colors for space can be white, yellow or red. Please refer to our Guidelines for Color Selection at www.barcode-us.com/upc/upcColorChart.html