How many digits do I print beneath the EAN/UPC Symbol in the Human Readable text?
You must, absolutely and without exception, print 12 digits, no more, no less, below the UPC-A Symbol. You must, absolutely and without exception, print 13 digits, no more, no less, below the EAN-13 Symbol. You must, absolutely and without exception, print eight digits, no more, no less, below UPC-E and EAN-8 Symbols.