Interesting Facts on the UPC-12!

Classification of UPC A barcode on basis of digits 0,1,2,3,4,5,6,7,8,9.
0,1,6,7,8,9: Engaged only with most common regular things.
2: Assigned to according to weight variables.
3: Drug and Health products by National Drug Code.
4: Local use in retail stores and warehouses on loyalty cards and coupons and non-food products.
5: For coupons only.