About EPA
- EPA Administrator
- Headquarters Offices
- Office of the Administrator (AO)
- 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 International and Tribal Affairs (OITA)
- Office of Land and Emergency Management (OLEM)
- Office of Research and Development (ORD)
- Office of Water (OW)
- Office of Inspector General
The Office of Inspector General is an independent office within EPA that performs audits, evaluations, and investigations of the Agency and its contractors, to promote economy and efficiency, as well as prevent and detect fraud, waste, and abuse.
- Regional Offices
We have ten Regional offices, each of which is responsible for the execution of our programs within several states and territories. To get information about activities in your Regional office, select the appropriate link.
- Region 1 – Boston (serving CT, ME, MA, NH, RI, and VT)
- Region 2 – New York City (serving NJ, NY, Puerto Rico, and the U.S. Virgin Islands)
- Region 3 – Philadelphia (serving DE, DC, MD, PA, VA, and WV)
- Region 4 – Atlanta (serving AL, FL, GA, KY, MS, NC, SC, and TN)
- Region 5 – Chicago (serving IL, IN, MI, MN, OH, and WI)
- Region 6 – Dallas (serving AR, LA, NM, OK, and TX)
- Region 7 - Kansas City (serving IA, KS, MO, and NE)
- Region 8 – Denver (serving CO, MT, ND, SD, UT, and WY)
- 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)
- Region 10 – Seattle (serving AK, ID, OR, WA and 271 native tribes)
- Information about visiting Regional offices
- Regional and Deputy Regional Administrators
- EPA organization chart
- Regional office mailing addresses
- Information about the "Lead Region" process
- Labs, Research Centers, Research Programs and Science Advisory Organizations
- Office of Research and Development Laboratories
These labs develop knowledge, assessments, and scientific tools that form the underpinnings of the vast majority of EPA's protective standards and guidance.- National Center for Computational Toxicology
- National Center for Environmental Assessment
- National Center for Environmental Research
- National Exposure Research Laboratory
- National Health and Environmental Effects Research Laboratory
- National Homeland Security Research Center
- National Risk Management Research Laboratory
- Office of Research and Development Research Programs
Six national research programs engage with outside partners and EPA programs and offices to identify the research priorities that are important for achieving EPA’s strategic goals and objectives.
- Program Office Laboratories
These labs directly support regulatory implementation, compliance, and enforcement at a national level. For example, the National Vehicle and Fuel Emissions Laboratory performs motor vehicle standards testing.- Office of Air and Radiation labs and research centers:
- Office of Chemical Safety and Pollution Prevention labs:
- Regional Laboratories
These labs provide scientific data that support the Regional environmental programs' needs for immediate information to make decisions.- Region 1's New England Regional Laboratory
- Region 2's Laboratory at EPA's Edison (New Jersey) Environmental Center
- Region 3's Laboratory and Field Services at EPA's Environmental Science Center
- Region 4's Science and Ecosystem Support Division
- Region 5's Chicago Regional Laboratory
- Region 6's Environmental Services Branch Laboratory
- Region 7's Science and Technology Center
- Region 8's Central Regional Laboratory
- Region 9's Central Regional Laboratory
- Region 10's Manchester Environmental Laboratory
Learn more about Regional science and technology organizations at EPA
Why are our labs located where they are? Read a historical perspective on siting our facilities.- Science Advisory Organizations
Learn about the functions of these organizations- Internal Science Advisory Organizations
- Independent/External Science Advisory Organizations
- Office of Research and Development Laboratories
- Offices with a Geographic Focus
- Planning, Budget and Results
- Working with Us
Map of EPA Offices, Labs and Research Centers Around the Nation
- View a larger version of this map.
- Some of our locations are very close to each other and can only be distinguished if you:
- zoom in, or
- click on a blue dot and use the arrows near the top right corner of the pop-up to learn about those locations.
- Learn what EPA is doing in your state.