Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents C-1.6 Assessment Calculation Example for Barcode Uniqueness Piece Errors The example below explains the process..." /> Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents C-1.6 Assessment Calculation Example for Barcode Uniqueness Piece Errors The example below explains the process..." />