U.S. Postal Service

Postal Service Supply Management is responsible for important components of the contract invoice payment process, which includes invoice submission, certification, and approval for payment. Suppliers can submit invoices manually or electronically as specified in the contract. Prior to payment...

From January 1, 2020, through March 31, 2021, the Denver, CO, Processing and Distribution Center reported 6,280 late arriving containers, 2.2 billion pieces of delayed inventory, and 168,490 delayed dispatch containers. This site was judgmentally selected based on the high number of delayed dispatch...

From January 1, 2020, through April 30, 2021, the West Valley, AZ, Processing and Distribution Center reported 7,034 late arriving containers, about 270.9 million pieces of delayed inventory, and 180,161 delayed dispatch containers. This site was selected based on the high number of delayed dispatch...

Our objective was to evaluate select mail delivery and customer service operations and determine whether internal controls were effective at the Newark Post Office.

Our objective was to assess the effectiveness of the Postal Service’s Secure Destruction program. The Secure Destruction program is one of the Postal Service’s key environmental sustainability initiatives. The Postal Service developed the program with commercial mailers (mailers) in 2014 to...

Our objective was to determine if the Postal Service properly processed and supported online refund requests for Priority Mail Express (PME). We conducted this audit in response to concerns raised by the U.S. Postal Inspection Service and our Office of Investigations. The concerns related to...

OIG data analytics identified the Ranson, WV, Post Office as having $36,694 recorded to account identifier code (AIC) 528, Refund Permit Postage and Fees, from October 1, 2019 to September 30, 2020. This amount represented 81 percent of the district’s $45,157 refunds for permit postage and fees for...

The Postal Service uses contracted, supplier-operated routes to transport mail and equipment between plants, post offices, and other designated points. These routes include “as needed” services that allow suppliers to travel anywhere within the continental U.S. “As needed” routes are on-demand...

The City Carrier Cost System (CCCS) is a statistical study of mail delivered on city carrier routes. For each selected route, a data collection technician selects a sample of mail to be delivered on the scheduled test date. The technician records the mail class, product type, and other...

The Postal Service uses a vast network of systems to collect, process, transport, and deliver nearly half of the world’s mail. The majority of these systems are classified as business applications because they support essential business functions, such as mail processing and delivery. To improve...