publications) and Package Services, which includes Bound Printed Matter, Media Mail® and Library Mail is measured from entry into the postal system to delivery. Service performance for Periodicals (e.g. USPS Marketing Mail™ is a class of mail consisting of mailable matter that is not required to be mailed as First-Class Mail or Periodicals. Single-Piece First-Class Mail® International provides a measure of the domestic leg of travel for single-piece international mail. Presort First-Class Mail® includes commercial mail prepared by the mailers which is sorted to the finest extent required. Single-Piece First-Class Mail® includes letters, flats and parcels and is measured from collection box drop point to delivery. The Postal Service™ measures service performance in terms of speed and reliability. Service Performance Targets FY2020 Market Dominant Products HTM Mailing Services Measurement Results USPS Historical Quarterly Performance Trends (FY20 Q4 to FY21 Q4) HTMģ-Digit ZIPs associated to each District HTM