| Name | Telephone Number |
| U.S. Department of Energy Ames Site Office 111 TASF, Iowa State University Ames, Iowa 50011 | 515-294-9557 |
| U.S. Department of Energy Argonne Site Office 9800 S. Cass Avenue Argonne, IL 60439 | 630-252-2000 |
| U.S. Department of Energy Berkeley Site Office Berkeley National Laboratory 1 Cyclotron Road Berkeley, CA 94720 | 510-486-5784 |
| U.S. Department of Energy Bonneville Power Administration P.O. Box 3621 905 NE 11th Avenue Portland, OR 97232 | 503-230-3000 |
| U.S. Department of Energy Brookhaven Site Office Upton, NY 11973 | 631-344-5050 |
| U.S. Department of Energy Carlsbad Field Office 4021 National Parks Highway Carlsbad, NM 88220 | 800-336-9477 |
| U.S. Department of Energy Chicago Office 9800 South Cass Avenue Argonne, IL 60439 | 630-252-2110 |
| U.S. Department of Energy Environmental Management Consolidated Business Center 250 East 5th Street, Suite 500 Cincinnati, OH 45202 | 513-246-0500 |
| U.S. Department of Energy Fermi Site Office P.O. Box 2000 Batavia, IL 60510 | 630-840-3281 |
U.S. Department of Energy Golden, CO 80401 | 240-562-1800 |
| U.S. Department of Energy Idaho Operations Office 1955 N. Freemont Avenue Idaho Falls, ID 83415 | 208-526-0111 |
| U.S. Department of Energy Kansas City Site Office 2000 East 95th Street Kansas City, MO 64131 | 816-997-2000 |
| U.S Department of Energy National Nuclear Security Administration Livermore Site Office P.O. Box 808, L-293 Livermore, CA 94551-0808 | 925-422-2008 |
| U.S. Department of Energy Los Alamos Site Office 3747 West Jemez Road Los Alamos, NM 87544 | 505-667-5491 |
| U.S. Department of Energy National Energy Technology Office 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 | 800-553-7681 |
| U.S. Department of Energy National Energy Technology Office 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 | 800-553-7681 |
| U.S. Department of Energy National Nuclear Security Administration Service Center P.O. Box 5400 Albuquerque, NM 87185-5400 | 505-845-6202 |
| U.S. Department of Energy National Nuclear Security Administration Nevada Site Office P.O. Box 98518 Las Vegas, NV 89193-8518 | 702-295-3521 |
| U.S. Department of Energy National Nuclear Security Administration Y-12 Site Office P.O. Box 2009 Oak Ridge, TN 37831-8245 | 865-576-9918 |
| U.S. Department of Energy Naval Reactors Laboratory Field Office P.O. Box 109 West Mifflin, PA 15122-0109 | 412-476-7202 |
| U.S. Department of Energy Oak Ridge National Laboratory Site Office Bethel Valley Road Building 4500N, Rm. 211 Oak Ridge, TN 37831-6269 | 865-576-0710 |
| U.S. Department of Energy Oak Ridge Office P.O. Box 2001 Oak Ridge, TN 37831 | 865-574-1000 |
| U.S. Department of Energy Office of River Protection P.O. Box 550 Richland, WA 99352 | 509-376-7411 |
| U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831 | 865-576-1188 |
| U.S. Department of Energy Pacific Northwest Site Office P.O. Box 350, MS K9-42 Richland, WA 99352 | 509-372-4365 |
| U.S. Department of Energy Pantex Site Office P.O. Box 30030 Amarillo, TX 79120 | 806-477-3000 |
| U.S. Department of Energy Portsmouth Paducah Project Office 1017 Majestic Drive, Suite 200 Lexington, KY 40513 | 859-219-4000 |
| U.S. Department of Energy Power Marketing Washington DC Office 1000 Independence Ave., S.W. Room 8G-061 Washington, DC 20585 | 202-586-5640 |
| U.S. Department of Energy Princeton Site Office P.O. Box 451 Princeton, NJ 08543 | 609-243-2000
|
| U.S. Department of Energy Richland Operations Office 825 Jadwin Ave. P.O. Box 550 Richland, WA 99352 | 509-376-7411 |
| U.S. Department of Energy Rocky Mountain Oilfield Testing Center 907 N. Poplar, Suite 150 Casper, WY 82601 | 307-233-4800 |
| U.S. Department of Energy Sandia Site Office P.O. Box 5400 Albuquerque, NM 87185 | 505-845-6036 |
| U.S. Department of Energy Savannah River Operations Office Road 1A Aiken, SC 29801 | 803-725-6211 |
| U.S. Department of Energy Savannah River Site Office Road 1A Aiken, SC 29801 | 803-725-6211 |
| U.S. Department of Energy Southeastern Power Administration 1166 Athens Tech Road Elberton, GA 30635-6711 | 706-213-3800 |
| U.S. Department of Energy Southwestern Power Administration One West Third Street Tulsa, OK 74103-3502 Headquarters, Operations and Maintenance Offices | 918-595-6600 |
| U.S. Department of Energy SLAC Site Office 2575 Sand Hill Road Menlo Park, CA 94025 | 650-926-3300 |
| U.S. Department of Energy Strategic Petroleum Reserve Project Management Office 900 Commerce Road East New Orleans, LA 70123 | 504-734-4200 |
| U.S. Department of Energy West Valley Demonstration Project 10282 Rock Springs Road West Valley, NY 14171-9499 | 716-942-3235 |
| U.S. Department of Energy Western Area Power Administration P.O. Box 281213 Lakewood, CO 80228-8213 Corporate Office and Regional Offices | 720-962-7000 |