United States. Department of Transportation. Office of Inspector General

• Root causes of Amtrak train delays
• Actions needed to enforce controls over purchase cards
• Actions needed to enhance pipeline security
• Actions needed to ensure accurate Executive Order 13520 reporting
• Actions needed to improve FTA's oversight of the Dulles corridor metrorail project's phase 1
• Actions needed to minimize long, on-board flight delays
• Actions needed to mitigate risks associated with the Access to the Region's Core project
• Actions needed to strengthen the Federal Highway Administration's national review teams
• Actions taken and needed to implement mandates and address recommendations regarding rail safety
• Air carriers' outsourcing of aircraft maintenance
• Air traffic control
• Air traffic control modernization