About EPA

EPA Organization Chart

Office of the Administrator (AO)

Headquarters Offices

Office of Administration and Resources Management (OARM)

Office of Air and Radiation (OAR)

Office of Chemical Safety and Pollution Prevention (OCSPP)

Office of the Chief Financial Officer (OCFO)

Office of Enforcement and Compliance Assurance (OECA)

Office of Environmental Information (OEI)

Office of General Counsel (OGC)

Office of Inspector General (OIG)

Office of International and Tribal Affairs (OITA)

Office of Land and Emergency Management (OLEM)

202-566-0200
About the Office of Land and Emergency Management
OLEM Organization Chart
OLEM was formerly known as the Office of Solid Waste and Emergency Management (OSWER). About the OSWER to OLEM name change

Office of Research and Development (ORD)

Office of Water (OW)

Regional Offices around the Nation

Region 1 / Boston

Serving CT, ME, MA, NH, RI, and VT
617-918-1010
About Region 1
Region 1 Organization Chart

Region 2 / New York

Serving NJ, NY, Puerto Rico, and the U.S. Virgin Islands
212-637-5000
About Region 2
Region 2 Organization Chart

Region 3 / Philadelphia

Serving DE, DC, MD, PA, VA, and WV
215-814-5000
About Region 3
Region 3 Organization Chart

Region 4 / Atlanta

Serving AL, FL, GA, KY, MS, NC, SC, and TN
404-562-9900
About Region 4
Region 4 Organization Chart

Region 5 / Chicago

Serving IL, IN, MI, MN, OH, and WI
312-886-3000
About Region 5
Region 5 Organization Chart

Region 6 / Dallas

Serving AR, LA, NM, OK, and TX
214-665-2200
About Region 6
Region 6 Organization Chart

Region 7 / Kansas City

Serving IA, KS, MO, and NE
913-551-7003
About Region 7
Region 7 Organization Chart

Region 8 / Denver

Serving CO, MT, ND, SD, UT, and WY
303-312-6312
About Region 8
Region 8 Organization Chart

Region 9 / San Francisco

Serving AZ, CA, HI, NV, American Samoa, Commonwealth of the Northern Mariana Islands, Federated States of Micronesia, Guam, Marshall Islands, and Republic of Palau
415-947-8700
About Region 9
Region 9 Organization Chart

Region 10 / Seattle

Serving AK, ID, OR, and WA
206-553-1200 or 800-424-4372
About Region 10
Region 10 Organization Chart