United States Postal Service®

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

Quarter IV


Package Services includes Media Mail®/Library Mail, Bound Printed Matter Flats, and Bound Printed Matter Parcels. Package Services includes both single-piece and presort volumes, with approximately 91 percent of the total represented by presort.

Service performance for Media Mail®/Library Mail and Bound Printed Matter Parcels is measured using an internal USPS® system, the Product Tracking and Reporting System (PTR). This system measures transit time from the time of mailing until the time of delivery to the intended recipient, on parcels for which a customer requested USPS Tracking® service. The first en route scan serves as the proxy for the time of mailing for commercial and PC Postage parcels that were not mailed over the counter. Transit time is compared to USPS® service standards to develop the measure of on-time service performance. The system measures service to and from virtually all 3-Digit ZIP Code™ areas for which Package Services volume originates or destinates.

Service performance for Bound Printed Matter Flats is measured using 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 Full-Service Intelligent Mail® Bound Printed Matter Flats 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 system used for this reporting is called the Intelligent Mail® Accuracy and Performance System (iMAPS).

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 Bound Printed Matter Flats mail that is 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 of Bound Printed Matter Flats were comprised of Bound Printed Matter Flats and USPS Marketing Mail® Flats with IMB® received by external reporters. USPS Marketing Mail® Flats were used to supplement the very limited Bound Printed Matter Flats data available during this period. Because even the combination of those two types of mail still resulted in too little volume, External First-Class Mail® (EXFC) Measurement System flats were also used to supplement the data for calculating the delivery factor. As a result of the use of this proxy data, which may differ significantly from the actual product, the delivery factor may not be representative of the gap between estimated delivery based on the final automated processing and actual delivery for Bound Printed Matter Flats to every district.

In FY 2018 Quarter 4, the service performance results for Package Services through PTR included the data available for retail parcels mailed end-to-end from over the counter and with USPS Tracking® and End-To-End commercial and PC Postage parcels with USPS Tracking®. The first en route scan was used as the start-the-clock for the performance measurement of End-To-End parcels that were not mailed over the counter, with no adjustments for any transit time between acceptance and the first en route scan. USPS® is in the process of developing an approach to account for the period from when U.S. Postal Service® receives the mail until the first en route scan of the mail. Results for Destination Entry Bound Printed Matter parcels were also included in the measurement. While Destination Delivery Unit (DDU) Entry represented approximately 71 percent of Destination Entry Bound Printed Matter Parcels in the population, 98 percent of measured mail was DDU Entry. The results may not be representative of all parcels because of the heavy volume of DDU Entry parcels in measurement compared with the overall.

Due to the limitations of the current systems, the overall Package Services results are presented without any weighting. That is, no attempt was made to use the measured pieces to represent the entire Package Services population. These results represent the service performance for all measured Package Services pieces during the quarter.

Performance Highlights

National Package Services performance was 89.9 percent, which is 0.4 points lower than the same period last year and 0.1 points lower than the annual target of 90.0 percent. In FY 2018 Quarter 4, 99.2 percent were delivered within the service standard plus three days, which is 0.2 points higher than the same period last year.

 In FY 2018 Quarter 4, 31 districts had scores at or above the target of 90.0. The Western Pennsylvania District led in performance with 95.9 percent on time. The Western Area and Pacific Area both achieved the highest performance of the seven areas, with an on-time score of 91.4 percent.

The national FY 2018 annual performance of Package Services was 89.2 percent on time, a 0.4 point decrease from the prior year. It represented the second highest annual score since measurement began.


District Percent On Time
Capital Metro Area 90.8
Atlanta 91.2
Baltimore 90.7
Capital 92.0
Greater South Carolina 85.2
Greensboro 90.8
Mid-Carolinas 91.9
Northern Virginia 94.1
Richmond 91.0
Eastern Area 90.9
Appalachian 89.7
Central Pennsylvania 87.7
Kentuckiana 88.6
Northern Ohio 90.9
Ohio Valley 89.9
Philadelphia Metro 91.7
South Jersey 93.7
Tennessee 89.7
Western New York 93.3
Western Pennsylvania 95.9
Great Lakes Area 87.0
Central Illinois 80.6
Chicago 89.9
Detroit 86.7
Gateway 86.4
Greater Indiana 89.1
Greater Michigan 90.2
Lakeland 88.1
Northeast Area 90.2
Albany 91.8
Caribbean 78.1
Connecticut Valley 91.4
Greater Boston 92.8
Long Island 87.9
New York 90.2
Northern New England 91.7
Northern New Jersey 86.8
Triboro 89.9
Westchester 87.9
Pacific Area 91.4
Bay-Valley 93.3
Honolulu 58.8
Los Angeles 89.6
Sacramento 89.1
San Diego 92.0
San Francisco 93.3
Santa Ana 89.7
Sierra Coastal 93.4
Southern Area 87.7
Alabama 87.4
Arkansas 90.4
Dallas 85.8
Fort Worth 88.7
Gulf Atlantic 90.0
Houston 87.2
Louisiana 88.8
Mississippi 88.6
Oklahoma 89.9
Rio Grande 90.6
South Florida 85.3
Suncoast 84.6
Western Area 91.4
Alaska 83.8
Arizona 91.2
Central Plains 89.6
Colorado/Wyoming 93.9
Dakotas 86.9
Hawkeye 85.6
Mid-America 88.4
Nevada-Sierra 89.8
Northland 90.5
Portland 94.7
Salt Lake City 92.9
Seattle 93.3
Nation FY2018 Q4 89.9

Nation FY2017 Q4 (SPLY) 90.3

Nation FY2009 Annual 73.4
Nation FY2010 Annual 79.4
Nation FY2011 Annual 76.7
Nation FY2012 Annual 87.2
Nation FY2013 Annual 87.5
Nation FY2014 Annual 86.3
Nation FY2015 Annual 84.0
Nation FY2016 Annual 82.5
Nation FY2017 Annual 89.6
Nation FY2018 Annual 89.2
Nation FY2018 Q1 87.5
Nation FY2018 Q2 88.2
Nation FY2018 Q3 91.6

FY2018 Annual Target 90.0