Quarterly Performance for Single-Piece First-Class Mail International®
Service Variance
Mailpieces Delivered Between 07/01/2023 and 09/30/2023

Overview

Single-Piece First-Class Mail International® Inbound and Outbound service performance is measured via the USPS internal service performance measurement system. The service performance measurement system combines scanning of mailpieces by postal personnel at randomly selected collection and delivery points with in-process machine scans for all eligible mail to estimate total transit time for the mail. The total transit for outbound mail is comprised of two legs: collection to initial automated processing, known as First Mile; initial processing to final automated processing, known as Processing Duration. The final processing event for outbound pieces occurs once pieces are sorted and ready to leave the designated international processing center in the United States. Similarly, the total transit for inbound mail is comprised of two legs: initial processing upon arrival at the USPS® international processing center to final automated processing, known as Processing Duration; and final processing to delivery, known as Last Mile. Inbound flats are measured by proxy using the First Mile & Processing Duration performance of domestic flats. The estimated transit-time is compared against Single-Piece First-Class Mail® service standards to determine the percent of mail delivered on time. The service performance of inbound Single-Piece First-Class Mail International® parcels is measured by the USPS®, and represents the census data of all inbound parcels processed by the USPS®. On January 27, 2013, outbound Single-Piece First-Class Mail International® parcels became a competitive product and these data are no longer included in the measurement. Starting in FY2020 Quarter 2, inbound Single-Piece First-Class Mail International® parcels became a competitive product and these data are no longer included in the measurement.

Since not all postal administrative districts have sufficient international volumes for statistically representative reporting, the U.S. Postal Service® reports international quarterly service performance at a postal administrative area level.

Performance Highlights

The national Single-Piece First-Class Mail International® Inbound/Outbound Combined performance was 81.7 percent on time in FY2023 Quarter 4. Inbound performance was 80.0 percent on time and Outbound performance was 83.1 percent on time in FY2023 Quarter 4. Nationally, there was 96.6 percent of mail delivered within the service standard plus three days for Inbound/Outbound Combined.

In FY2023 Quarter 4, Westpac Area had the highest Inbound/Outbound Combined performance, with 88.7 percent on time. Westpac Area had the highest Inbound performance among the four areas at 83.4 percent on time and Westpac Area had the highest Outbound performance at 93.0 percent on time, in FY2023 Quarter 4. All areas had at least 95.5 percent of mail delivered within the service standard plus three days for Inbound/Outbound combined.