About EPA

Mailing Addresses and Phone Numbers

Sending to or calling a specific employee

  • Regular mail: please use the mailing address for a specific employee as listed in the EPA Employee Directory.
  • Package or delivery: please contact the employee and ask for the specific street address and any required delivery instructions.
  • Calling:  please use the phone number listed in the EPA Employee Directory.

Sending to a location without knowing the specific employee

Please use the addresses listed below. At headquarters, we use one address for all regular mail and specific building addresses for packages. In other locations, we use one address for both purposes.


HQ Standard Postal Mailing Address

Environmental Protection Agency
1200 Pennsylvania Avenue, N.W.
Washington, DC 20460

To send a letter to a particular EPA organization, add the name of the organization and the mail code designation for that office to the address above.  The organization name and mail code designation should be listed below "Environmental Protection Agency" and above "1200 Pennsylvania Avenue, N.W."

Mail Codes for EPA HQ Organizations
Office of the Administrator 1101A
Office of Administration and Resources Management 3101A
Office of Air and Radiation 6101A
Office of Chemical Safety and Pollution Prevention 7101M
Office of the Chief Financial Officer 2710A
Office of Enforcement and Compliance Assurance 2201A
Office of Environmental Information 2810A
Office of General Counsel 2310A
Office of the Inspector General 2410T
Office of International and Tribal Affairs 2610R
Office of Policy 1804A
Office of Research and Development 8101R
Office of Solid Waste and Emergency Response 5101T
Office of Water 4101M

EPA HQ Main Telephone Number

(202) 272-0167
TTY (speech- and hearing-impaired) (202) 272-0165

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HQ Overnight Delivery Addresses

Main HQ Locations

USEPA William Jefferson Clinton Building North (WJC North)
1200 Pennsylvania Avenue N.W.
Washington, DC 20004

USEPA William Jefferson Clinton Building South (WJC South)
1200 Pennsylvania Avenue N.W.
Washington, DC 20004

USEPA William Jefferson Clinton West Building (WJC West)
1301 Constitution Avenue N.W.
Washington, DC 20004

USEPA William Jefferson Clinton East Building (WJC East) 
1201 Constitution Avenue N.W.
Washington, DC 20004

USEPA Ronald Reagan Building (RRB)
1300 Pennsylvania Avenue N.W.
Washington, DC 20004

Other HQ Locations

District of Columbia
Environmental Protection Agency
633 3rd Street, N.W.
Washington, DC 20001

Environmental Protection Agency
1110 Vermont Ave. N.W., Suite 1160
Washington, DC 20005

Environmental Protection Agency
1310 L Street, N.W.
Washington, DC 20005

Environmental Protection Agency
1724 F Street, N.W.
Washington, DC 20505

Environmental Protection Agency
1025 F Street, N.W.
Washington, DC 20505

Environmental Protection Agency
Colorado Building
1341 G Street, N.W., Suite 600
Washington, DC 20005

Environmental Protection Agency
Charles Glover Building (CGB)
808 17th Street, N.W.
Washington, DC 20006

Environmental Protection Agency
Franklin Court Building (FCB)
1099 14th Street, N.W., Suite 350
Washington, DC 20005

Environmental Protection Agency
Metropolitan Square (Metro)
655 15th Street, N.W., Suite 800
Washington, DC 20005

Environmental Protection Agency
National Press Building (NPB)
EPA Washington Telecommunications Center/STG
529 14th Street, N.W., Suite 1170
Washington, DC 20045

Environmental Protection Agency
Warehouse
3025 V Street, N.E.
Washington, DC 20018

Maryland
Environmental Protection Agency
Environmental Science Center (ESC)
701 Mapes Road
Fort Meade, MD 20755-5350

Virginia
One Potomac Yard
2777 S. Crystal Drive
Arlington, VA 22202-3553

Two Potomac Yard
2733 S. Crystal Drive
Arlington, VA 22202-3553

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Addresses and Phone Numbers for Our 10 Regional Offices around the Nation

Region 1 (CT, MA, ME, NH, RI, VT)
Environmental Protection Agency
5 Post Office Square - Suite 100
Boston, MA 02109-3912
Phone: (617) 918-1111
Fax: (617) 918-1809
Toll free within Region 1: (888) 372-7341

Region 2 (NJ, NY, PR, VI)
Environmental Protection Agency
290 Broadway
New York, NY 10007-1866
Phone: (212) 637-3000
Fax: (212) 637-3526

Region 3 (DC, DE, MD, PA, VA, WV)
Environmental Protection Agency
1650 Arch Street
Philadelphia, PA 19103-2029
Phone: (215) 814-5000
Fax: (215) 814-5103
Toll free: (800) 438-2474
Email: r3public@epa.gov

Region 4 (AL, FL, GA, KY, MS, NC, SC, TN)
Environmental Protection Agency
Atlanta Federal Center
61 Forsyth Street, SW
Atlanta, GA 30303-3104
Phone: (404) 562-9900
Fax: (404) 562-8174
Toll free: (800) 241-1754

Region 5 (IL, IN, MI, MN, OH, WI)
Environmental Protection Agency
77 West Jackson Boulevard
Chicago, IL 60604-3507
Phone: (312) 353-2000
Fax: (312) 353-4135
Toll free within Region 5: (800) 621-8431

Region 6 (AR, LA, NM, OK, TX)
Environmental Protection Agency
Fountain Place 12th Floor, Suite 1200
1445 Ross Avenue
Dallas, TX 75202-2733
Phone: (214) 665-2200
Toll free within Region 6: (800) 887-6063

Region 7 (IA, KS, MO, NE)
Environmental Protection Agency
11201 Renner Blvd.
Lenexa, KS 66219
Phone: (913) 551-7003
Toll free: (800) 223-0425

Region 8 (CO, MT, ND, SD, UT, WY)
Environmental Protection Agency
1595 Wynkoop St.
Denver, CO 80202-1129
Phone: (303) 312-6312
Fax: (303) 312-6339
Toll free: (800) 227-8917
Email: r8eisc@epa.gov

Region 9 (AZ, CA, HI, NV)
Environmental Protection Agency
75 Hawthorne Street
San Francisco, CA 94105
Phone: (415) 947-8000
(866) EPA-WEST (toll free in Region 9)
Fax: (415) 947-3553
Email: r9.info@epa.gov

Region 10 (AK, ID, OR, WA)
Environmental Protection Agency
1200 Sixth Avenue, Suite 900
Seattle, WA 98101
Phone: (206) 553-1200
Fax: (206) 553-2955
Toll free: (800) 424-4372

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Other Major Locations (Cincinnati and RTP)

Cincinnati offices, physical address:
U.S. EPA
26 Martin Luther King Drive
Cincinnati, Ohio 45268

Research Triangle Park, NC offices:
Mailing address:

U.S. EPA
Mail drop: [fill in mail code]
RTP, NC 27711

Physical address:
U.S. EPA
109 T.W. Alexander Drive
Durham, NC 27709

Commercial delivery address:
U.S. EPA
4930 Old Page Road
Durham, NC 27703

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Satellite Locations and Laboratories

U.S. EPA Environmental Science Center
United States Environmental Protection Agency
701 Mapes Road
Ft. Meade, MD 20755-5350
Phone: (410) 305-2607

U.S. EPA National Analytical Radiation Environmental Laboratory (NAREL)
540 South Morris Avenue
Montgomery, AL 36115-2601
Phone: (334) 270-3400
Fax: (334) 270-3454

U.S. EPA National Center for Computational Toxicology (NCCT)
Mail Code: B205-01
Research Triangle Park, NC 27711
Phone: (919) 541-1522
Fax: (919) 541-1194

U.S. EPA National Enforcement Investigations Center Laboratory (NEIC)
Box 25227, Building 25
Denver Federal Center
Denver, CO 80225
Phone: (303) 462-9000

U.S. EPA National Exposure Research Laboratory (NERL)
Mail Code: D305-01
Research Triangle Park, NC 27711
Phone: (919) 541-2106
Fax: (919) 541-0445

U.S. EPA National Exposure Research Laboratory (NERL)
Ecosystems Research Division
960 College Station Road
Athens, GA 30605-2700
Phone: (706) 355-8005

U.S. EPA National Exposure Research Laboratory (NERL)
Environmental Sciences Division
P.O. Box 93478
Las Vegas, Nevada 89193-3478
Phone: (702) 798-2100
Fax: (702) 798-2637

U.S. EPA National Health and Environmental Effects Research Laboratory (NHEERL)
Mail Code: B305-01
Research Triangle Park, NC 27711
Phone: (919) 541-2281
Fax: (919) 541-4324

U.S. EPA National Health and Environmental Effects Research Laboratory (NHEERL)
Atlantic Ecology Division
27 Tarzwell Drive
Narragansett, RI 02882
Phone: (401) 782-3001
Fax: (401) 782-3030

U.S. EPA National Health and Environmental Effects Research Laboratory (NHEERL)
Gulf Ecology Division
Sabine Island Drive
Gulf Breeze, FL 32561
Phone: (850) 934-9200
Fax: (850) 934-9201

U.S. EPA National Health and Environmental Effects Research Laboratory (NHEERL)
Mid-Continent Ecology Division
6201 Congdon Boulevard
Duluth, MN 55804
Phone: (218) 529-5000
Fax: (218) 529-5003

U.S. EPA National Health and Environmental Effects Research Laboratory (NHEERL)
Western Ecology Division
200 SW 35th Street
Corvallis, OR 97333
Voice: 541-754-4600
Fax: 541-754-4799

National Homeland Security Research Center
26 W. Martin Luther King Drive
Cincinnati, Ohio 45268
phone (513) 569-7907

National Risk Management Research Laboratory
26 Martin Luther King Drive
Cincinnati, Ohio 45268
Fax: 513-569-7680

National Risk Management Research Laboratory (NRMRL)
Subsurface Protection and Remediation Division
P.O. Box 1198
Ada, OK 74820
Phone: (580) 436-8500

National Risk Management Research Laboratory (NRMRL)
Water Supply and Resources Division
Urban Watershed Management Branch
2890 Woodbridge Avenue (MS-104)
Edison, NJ 08837

National Risk Management Research Laboratory (NRMRL)
Air Pollution Prevention and Control Divison
Mail Code E343-04
Research Triangle Park, NC 27711
Phone: (919) 541-2821
Fax: (919) 541-5227

U.S. EPA National Vehicle and Fuel Emissions Laboratory (NVFEL)
2000 Traverwood Drive
Ann Arbor, MI 48105
Phone: (734) 214-4200

U.S. EPA Radiation and Indoor Environments National Laboratory
P.O. Box 98517
Las Vegas, NV 89193-8517
Phone: (702) 784-8200

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Finance Centers

Cincinnati Finance Center (CFC)

  • Ph: (513) 487-2081
  • Fax: (513) 487-2545

U.S. Postal Service Address
U. S. Environmental Protection Agency
Cincinnati Finance Center
26 W. Martin Luther King Dr.
MS: Norwood
Cincinnati, Ohio 45268

UPS, Federal Express, or Overnight Mail
U.S. Environmental Protection Agency
Cincinnati Finance Center
4411 Montgomery Rd. (Suite 300)
Norwood, Ohio 45212


Las Vegas Finance Center (LVFC)

  • Ph: (702) 798-2485
  • Fax: (702) 798-2423

Postal Address, UPS, Federal Express, or Overnight Mail
Las Vegas Finance Center
4220 S. Maryland Parkway, Bldg C, Suite# 503
Las Vegas, NV 89119

Research Triangle Finance Center (RTP-FC)

  • Contract Payments:
    Ph: (919) 541-1148
  • Vendor Payments:
    Ph: (919) 541-0616

U.S. Postal Service Address
U.S. Environmental Protection Agency
RTP-Finance Center
109 TW Alexander Drive (D143-02)
Durham, N.C. 27711

UPS, Federal Express, or Overnight Mail
U.S. Environmental Protection Agency
RTP-Finance Center
4930 Old Page Road (D143-02)
Research Triangle Park, N.C. 27709

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