United States Postal Service®

Quarterly Performance for Periodicals
Mailpieces Delivered Between 07/01/2023 and 09/30/2023

Quarter IV


Beginning FY2019 Q1, service performance for Periodicals is measured through the USPS® internal measurement system. The system uses documented arrival time at a designated postal facility to start the clock, and an Intelligent Mail® barcode (IMB®) scan by postal personnel at delivery for randomly selected delivery points to stop the clock. Mail piece tracking from IMB® in-process scans is used in conjunction with the sampling data to extrapolate results for the entire volume of measurement eligible Full Service Intelligent Mail. The transit time from the start-the-clock through final automated processing is the Processing Duration leg, and the transit time from final automated processing until delivery is the Last Mile. Total transit time was calculated for the mail and compared with the appropriate service standard for the product to determine the service performance.

Scores prior to FY2019 Q1 were calculated and compiled by an independent external contractor. The system used for this reporting was called the Intelligent Mail® Accuracy and Performance System (iMAPS). The external contractor determined service performance based on the elapsed time between the start-the-clock event recorded by U.S. Postal Service® and the stop-the-clock event recorded by anonymous households and small businesses that report delivery information directly to the contractor. The service measure consisted of two parts: (1) how long mail pieces take to get through processing, and (2) how long mail takes from the last processing scan to delivery. The second portion was used as a delivery factor differential to determine the percent of all Periodicals delivered on the last processing date versus the percent delivered after the last processing date. Service performance was measured by comparing the transit time to USPS® service standards to determine the percent of mail delivered on time.


Sampling occurred within every district at collection and delivery during the quarter in all eligible 3-Digit ZIP Code areas. However, the Caribbean District had low volumes during the quarter and limited delivery sampling data available.

Performance Highlights

National Periodicals service performance was 86.0 percent on time, which is 0.9 points lower than the same period last year. Westpac Area led the nation with 90.3 percent on time in FY2023 Quarter 4.

In FY2023 Quarter 4, 93.4 percent of Periodicals were delivered within the service standard plus one day, 96.2 percent within the service standard plus two days, and 97.6 percent within the service standard plus three days. Individual areas achieved at least 92.6 percent delivery within the service standard plus one day, and as much as 98.5 percent within three days.

Area Percent On Time
Atlantic  85.2
Central  84.6
Southern  85.8
Westpac  90.3
Nation FY2023 Q4 86.0
Nation FY2022 Q4 (SPLY)  86.9
Nation FY2009 Annual 73.7
Nation FY2010 Annual 76.7
Nation FY2011 Annual 75.5
Nation FY2012 Annual 68.7
Nation FY2013 Annual 82.0
Nation FY2014 Annual 80.9
Nation FY2015 Annual 77.7
Nation FY2016 Annual 80.1
Nation FY2017 Annual 85.6
Nation FY2018 Annual 85.6
Nation FY2019 Annual 85.7
Nation FY2020 Annual 80.9
Nation FY2021 Annual 75.6
Nation FY2022 Annual 83.6
Nation FY2023 Annual 86.5
Nation FY2023 Q1 84.6
Nation FY2023 Q2 86.5
Nation FY2023 Q3 88.9
FY2023 Annual Target 85.75