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Our Frequent Questions database enables users to search for questions and answers about various radiation topics. If you do not find the answers you need you can also submit a question of your own.

Radiation Program Contact Information
  Phone Email
Radiation Protection Division
U.S. Environmental Protection Agency
Office of Radiation and Indoor Air
Radiation Protection Division
1200 Pennsylvania Avenue, NW  (MC 6608T)
Washington, DC 20460-0001
202.343.9290 Questions About Radiation or RadNet
National Analytical Radiation Environmental Laboratory
(Formerly: National Air and Radiation Environmental Laboratory)
540 South Morris Avenue
Montgomery, AL  36115-2601
National Center for Radiation Field Operations
(Formerly: Radiation and Indoor Environments National Laboratory)
4220 S. Maryland Pkwy, Bldg C.
Las Vegas, NV 89119
Radon in Homes:
Indoor Environments Division
1200 Pennsylvania Avenue, NW
Mail Code 6609J
Washington, DC 20460-0001
Questions About Radon
Report A Radiation Emergency
National Response Center 800.424.8802

Regional Offices

Regional Radiation Contacts

Please note: (You must use the browser's "back" button to return from these pages.)

Each EPA Regional Office is responsible within a group of states:

Region 1 Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont.
Region 2 New Jersey, New York, Puerto Rico and the U.S. Virgin Islands.
Region 3 Delaware, Maryland, Pennsylvania, Virginia, West Virginia, and the District of Columbia.
Region 4 Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee.
Region 5 Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin.
Region 6 Arkansas, Louisiana, New Mexico, Oklahoma, and Texas.
Region 7 Iowa, Kansas, Missouri, and Nebraska.
Region 8 Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming.
Region 9 Arizona, California, Hawaii, Nevada, and the territories of Guam and American Samoa
Region 10 Alaska, Idaho, Oregon, and Washington

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