An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

About EPA

Organization Chart for EPA's Office of Transportation and Air Quality (OTAQ)

Office Director ​

  • Business Operations and Resources Center
  • Center for People and Organization Excellence
  • Planning and Budget Office
  • Policy and Communications Center
  • Safety, Quality and Facilities Management Center

Assessment and Standards Division

  • Air Quality and Modeling Center
  • Data and Testing Center
  • Fuels Center
  • Health Effects, Benefits and Toxics Center
  • Heavy-Duty Onroad and Nonroad Center
  • Large Marine and Aviation Center
  • Light-Duty Vehicles and Small Engines Center

Compliance Division

  • Data Analysis and Information Center
  • Diesel Engine Compliance Center
  • Fuels Compliance Center-IT
  • Fuels Compliance Center-Policy
  • Gasoline Engine Compliance Center
  • Light-Duty Vehicle Center

Testing and Advanced Technology Division

  • Advanced Testing Center
  • Engine Testing Center
  • Fuels/Chemistry Center
  • Information Management Center
  • National Center for Advanced Technology
  • Testing Services Center
  • Vehicle Testing Center

Transportation and Climate Division

  • Climate Analysis and Strategies Center
  • Climate Economics and Modeling Center
  • Legacy Fleet Incentives and Assessment Center
  • SmartWay and Supply Chain Programs Center
  • State Measures and Transportation Planning Center
  • Technology Assessment Center