The Division of Community Health Investigations manages an office in Washington, D.C., as well as offices in each of the 10 EPA regions:
:* Boston (Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont)
:* New York and Edison, New Jersey (Region 2: New Jersey, New York, Puerto Rico, U.S. Virgin Islands)
:* Philadelphia (Region 3: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia)
:* Atlanta (Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee)
:* Chicago (Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin)
:* Dallas (Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas)
:* Kansas City, Kansas (Region 7: Iowa, Kansas, Missouri, Nebraska)
:* Denver and Helena, Montana (Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming)
:* San Francisco (Region 9: American Samoa, Arizona, California, Guam, Hawaii, Nevada, Northern Mariana Islands, Trust Territories)
:* Seattle and Anchorage, Alaska (Region 10: Alaska, Idaho, Oregon, Washington)
The regional offices work cooperatively with EPA, state and local health departments, health professionals, community groups, and other partners to implement programs and initiatives.