According to the OIG, the USPS's efforts to consolidate transportation have negatively impacted service quality.

The U.S. Postal Service's attempt to consolidate transportation operations has led to longer delivery times, particularly affecting rural areas, according to a report by the Office of Inspector General. The initiative aims to reduce costs by optimizing mail pickup and drop-off routes but has resulted in a decline in First-Class Mail service performance, with on-time reliability falling below 65% in some rural regions. Additionally, transportation expenses increased by over $7.1 million, countering the program's cost-saving goals, partly due to emergency contracts needed in certain areas.