U.S. Postal Service

In FY 2021, the U.S. Postal Service’s delivery network consisted of 163.1 million possible addresses, with more addresses – or delivery points – added every day. Delivering to every address is part of the Postal Service’s Universal Service Obligation (USO). In this white paper, the OIG sought to...

This report presents the results of our self-initiated audit of the U.S. Postal Service’s Mail Transport Equipment (MTE) Program (Project Number 21-229). Our objective was to assess Postal Service management of the MTE program. See Appendix A for additional information about this audit.MTE consists...

This report presents a summary of the results of our self-initiated audits assessing mail delivery, customer service, and property conditions at three select delivery units in the Columbus, OH, region (Project Number 22-052). These delivery units include the Lewis Center Main Post Office (MPO) in...

This management alert presents issues identified during our Review of National Change of Address and Moversguide Applications audit (Project Number: 21 146). Our objective is to notify U.S. Postal Service management of risks associated with ineffective identify verification controls on the...

This investigation was initiated based on a Postal Service employee's allegations of voter fraud in a video.

I. PREDICATIONThe United States Postal Service, Office of Inspector General (OIG), received a Congressional request dated August 7, 2020, regarding Postmaster General Louis DeJoy (DeJoy). Members of Congress requested the OIG examine, in part, DeJoy's compliance with ethics requirements...

This investigation was initiated based on a Highway Contract Route driver for the Postal Service who alleged he transported completed mail-in ballots across state lines from Bethpage, NY, to Lancaster, PA, on October 21, 2020.

This report presents the results of our self-initiated audit of Efficiency of Operations at the Margaret L. Sellers (MLS) Processing and Distribution Center (P&DC) in San Diego, CA (Project Number 22-061). We conducted this audit to provide U.S. Postal Service management with timely information on...

This interim report presents the results of our self-initiated audit of mail delivery, customer service, and property conditions at the Downtown San Diego Station in San Diego, CA (Project Number 22-060). The Downtown San Diego Station is in the California District of the WestPac Area. The station...

This interim report presents the results of our self-initiated audit of mail delivery, customer service, and property conditions at the Ramona Main Post Office (MPO) in Ramona, CA (Project Number 22-062). The Ramona Main Post Office is in the California 6 District of the WestPac Area and services...