United States Postal Service®

Quarterly Performance for Periodicals
Mailpieces Delivered Between 07/01/2018 and 09/30/2018

Quarter IV


Periodicals performance is measured via the Intelligent Mail® Accuracy and Performance System (iMAPS) using the documented arrival time at a designated postal facility to start the measurement clock, and an Intelligent Mail® barcode (IMB®) scan by an external, third-party reporter to stop-the-clock. Mail piece tracking from IMB® in-process scans is used in conjunction with the external data to extrapolate results to the entire volume of Periodicals with Full-Service Intelligent Mail®. Data collected by U.S. Postal Service® are provided to an independent, external contractor to calculate service measurement and compile the necessary reports.

The external contractor determines 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 consists 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 is 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 is measured by comparing the transit time to USPS® service standards to determine the percent of mail delivered on time.

The Service Performance Measurement (SPM) application of the Full-Service Seamless Acceptance and Service Performance system (SASP) serves as the data source for iMAPS. SPM captures data from all Full-Service Intelligent Mail® and applies business rules for service measurement before sending data to iMAPS.

Service performance measurement was suspended for mail originating from or destined to Caribbean District in FY 2018 Quarter 1 and FY 2018 Quarter 2 due to the devastating impacts of Hurricanes Irma and Maria. Measurement resumed in FY 2018 Quarter 3.


Data for the delivery factor were based on a combination of Periodicals with IMB® and External First-Class Mail® (EXFC) Measurement System flat-shaped test pieces received by external reporters. The EXFC data were used to supplement the Periodicals data available during this period.

Performance Highlights

National Periodicals service performance was 88.2 percent on time, which is 1.2 points higher than the same period last year. Eastern Area led the nation with 90.3 percent on time in FY 2018 Quarter 4.

In FY 2018 Quarter 4, 95.4 percent of Periodicals were delivered within the service standard plus one day, 97.6 percent within the service standard plus two days, and 98.6 percent within the service standard plus three days. Individual areas achieved at least 94.2 percent delivery within the service standard plus one day, and as much as 98.9 percent within three days.

The FY 2018 annual national service performance score was 85.6 for Periodicals which is the same as the score for FY 2017. It represented the highest annual score since measurement began, along with FY 2017 scores.


Area Percent On Time
Capital Metro 86.2
Eastern 90.3
Great Lakes 87.7
Northeast 86.4
Pacific 89.1
Southern 88.1
Western 88.9
Nation FY2018 Q4 88.2

Nation FY2017 Q4 (SPLY) 87.0

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 FY2018 Q1 82.1
Nation FY2018 Q2 83.7
Nation FY2018 Q3 88.6

FY2018 Annual Target 91.8