Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents C-4 Seamless Acceptance Assessment Calculations C-4.1 Assessment Calculation Example for Undocumented (Piece) E..." /> Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents C-4 Seamless Acceptance Assessment Calculations C-4.1 Assessment Calculation Example for Undocumented (Piece) E..." />