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Organization Chart for EPA's Office of Air and Radiation

Office of Air and Radiation (OAR) Assistant Administrator and Deputy Assistant Administrator

(202) 564-7404
About OAR

Office of Human Capital Management (OHCM)
- About OHCM
Office of Program Management Operations (OPMO)
- About OPMO
Office of Air Program Support (OAPS)
- About OAPS

Office of Clean Air Programs (OCAP)

Impacts & Ambient Standards Division
Chemicals, Coatings & Products Division
Regulatory Assistance Division
Industrial Processing & Power Division
Natural Resources Division

Office of State Air Partnerships (OSAP)

Air Quality Assessment Division
Air Quality Planning Division
Permitting & Program Support Division
Information Management Division

Office of Transportation and Air Quality (OTAQ)

Transportation Sector Impacts & Standards Division
Implementation, Analysis & Compliance Division
Testing & Advanced Technology Division
Legacy Emissions Division

Office of Radiation and Indoor Air (ORIA)

Indoor Environments Division
Radiation Protection Division
National Radiation Field Operations Division
National Analytical Radiation Environmental Laboratory Division