Barcode Position This menu lets you set the position the USPS barcode will appear on your label. USPS Preferred is for envelopes and post cards. Above Address and Below Address are for labels. Labels using this option should be placed so the barcode is no further than 2 3/4" from the bottom of the envelope. See your manual for important information on using Postal barcodes. See the Help entry under USPS barcodes for more information.