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About EPA

Mailing Addresses and Phone Numbers

Sending to a Specific Employee

  • Regular mail: please use the mailing address for a specific employee as listed in the EPA Employee Directory. See Find someone who works at EPA? at right.
  • Package or delivery: please contact the employee and ask for the specific street address and any required delivery instructions. See Find someone who works at EPA? at right.

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.

On this page:

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 Offices

EPA Headquarters Office Mail Code
Office of the Administrator 1101A
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 General Counsel 2310A
Office of the Inspector General 2410T
Office of International and Tribal Affairs 2610R
Office of Land and Emergency Management 5101T
Office of Policy 1804A
Office of Mission Support  3101A
Office of Research and Development 8101R
Office of Water 4101M

EPA HQ Main Telephone Number

(202) 564-4700

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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

Maryland

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

Virginia

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

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Regional Offices Across 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: (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

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: (800) 621-8431

Region 6 (AR, LA, NM, OK, TX)
Environmental Protection Agency
1201 Elm Street, Suite 500
Dallas, TX 75270
Phone: (214) 665-2200
Toll free: (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, GU, AS, MP)
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 155
Seattle, WA 98101
Phone: (206) 553-1200
Fax: (206) 553-2955
Toll free: (800) 424-4372

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Office of Research and Development Facilities

Research Center/Office/Division Address Phone Number
US EPA Office of Research and Development (ORD) - main office 1200 Pennsylvania Avenue, NW
Mail Code: 8101R
Washington, DC 20460
(202) 564-6620

US EPA Center for Computational Toxicology and Exposure (CCTE) - main office

Mail Code: D143-02
Research Triangle Park, NC 27711

(919) 541-4219

CCTE Biomolecular and Computational Toxicology Division

Mail Code: D143-02
Research Triangle Park, NC 27711

(919) 541-4219

CCTE Chemical Characterization and Exposure Division 

Mail Code: E205-09
Research Triangle Park, NC 27711

(919) 541-4219

CCTE Great Lakes Toxicology and Ecology Division

6201 Congdon Boulevard
Duluth, MN 55804

(218) 529-5016

CCTE Scientific Computing and Data Curation Division 

Mail Code: D143-02
Research Triangle Park, NC 27711

(919) 541-4219

US EPA Center for Environmental Measurement and Modeling (CEMM) - main office

Mail Code: D305-01
Research Triangle Park, NC  27711

(919) 541-2106

CEMM Air Methods and Characterization Division

Mail Code: E343-04
Research Triangle Park, NC 27711
(919) 541-2822

CEMM Atlantic Coastal Environmental Sciences Division

27 Tarzwell Drive
Narragansett, RI 02882
(401) 782-3001

CEMM Atmospheric and Environmental Systems Modeling Division 

Mail Code: E205-01
Research Triangle Park, NC 27711
(919) 541-9733

CEMM Ecosystem Processes Division

980 College Station Road
Athens, GA 30605-2700
(706) 355-8005

CEMM Gulf Ecosystem Measurement and Modeling Division

1 Sabine Island Drive
Gulf Breeze, FL 32561
(850) 934-9200

CEMM Watershed and Ecosystem Characterization Division

26 West Martin Luther King Dr.
Mail Code: 587
Cincinnati, OH  45268

(513) 569-7341

US EPA Center for Environmental Solutions and Emergency Response (CESER) - main office

26 W. Martin Luther King Dr.
Mail Code: 236
Cincinnati, OH 45268

(513) 569-7900

CESER Groundwater Characterization and Remediation Division

919 Kerr Research Drive
P.O. Box 1198
Ada, OK 74820

(580) 436-8500

CESER Homeland Security Materials Management Division

Mail Code E343-06
Research Triangle Park, NC 27711

(919) 541-2336

CESER Land Remediation Technology Division

26 W. Martin Luther King Dr.
Mail Code: 190
Cincinnati, OH 45268

(513) 569-7029

CESER Technical Support Coordination Division 

26 W. Martin Luther King Dr.
Mail Code: NG16
Cincinnati, OH 45268

(513) 569-7900

CESER Water Infrastructure Division

26 W. Martin Luther King Dr.
Mail Code: 689
Cincinnati, OH 45268

(513) 569-7046

U.S. EPA Center for Public Health and Environmental Assessment (CPHEA) - main office

Mail Code: B305-01
Research Triangle Park, NC 27711
(919) 541-2281

CPHEA Chemical and Pollutant Assessment Division


1200 Pennsylvania Avenue, NW
Mail Code: 8602R
Washington, DC 20460

(202) 564-4700

CPHEA Health and Environmental Effects Assessment Division

Mail Code: B243-01
Research Triangle Park, NC 27711

(919) 541-4173

CPHEA Public Health and Environmental Systems Division

Mail Code: B105-03
Research Triangle Park, NC 27711

(919) 541-4564

CPHEA Public Health and Integrated Toxicology Division

104 Mason Farm Road
Chapel Hill, NC 27599

(919) 966-9583

CPHEA Pacific Ecological Systems Division

200 SW 35th Street
Corvallis, OR 97333
(541) 754-4600

U.S. EPA Office of Science Advisor, Policy, and Engagement (OSAPE) - main office

1200 Pennsylvania Avenue, NW
Mail Code: 8104R
Washington, DC 20460
(202) 564-6705

OSAPE Extramural Research and Partnerships Division

1200 Pennsylvania Ave, NW
Mail Code: 8104R
Washington, DC 20460
(202) 564-6705

OSAPE Science Policy Division

1200 Pennsylvania Ave., NW
Mail Code: 8104R
Washington, DC 20460
(202) 564-6705

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National Laboratories

 
Laboratory Address Phone Number
U.S. EPA Environmental Science Center 701 Mapes Road
Ft. Meade, MD 20755-5350
(410) 305-2800
U.S. EPA National Analytical Radiation Environmental Laboratory (NAREL) 540 South Morris Avenue
Montgomery, AL 36115-2601
(334) 270-3400
U.S. EPA National Center for Radiation Field Operations (NCRFO) 4220 S Maryland Parkway, Building C
Las Vegas, Nevada  89119
(702) 784-8200
U.S. EPA National Enforcement Investigations Center Laboratory (NEIC) Box 25227, Building 25
Denver Federal Center
Denver, CO 80225
(303) 462-9000
U.S. EPA National Vehicle and Fuel Emissions Laboratory (NVFEL) 2000 Traverwood Drive
Ann Arbor, MI 48105
(734) 214-4200

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Cincinnati and Research Triangle Park

Cincinnati, OH

Physical Address

U.S. EPA
26 Martin Luther King Drive
Cincinnati, OH 45268

Research Triangle Park, NC

Type Address
Mailing Address U.S. EPA
Mail Code: [fill in mail code]
Research Triangle Park, 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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Finance Centers

Cincinnati Finance Center (CFC)

U.S. Postal Service, UPS, Federal Express, or Overnight Mail
U.S. EPA
26 W. Martin Luther King Dr.
MS: WG32B
Cincinnati, Ohio 45268

Ph: (513) 487-2074

Las Vegas Finance Center (LVFC)

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

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

Research Triangle Finance Center (RTP-FC)

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

Contract Payments:
Ph: (919) 541-1148

Vendor Payments:
Ph: (919) 541-0616

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