Member State: United States of America

Representative Date of Appointment Alternate(s) Date of Appointment Attaché

Mr. Thomas R. HASTINGS
Mr. Thomas R. HASTINGS
Interim Representative
(202) 647-9422

 January 11, 2025 Ms. Kimberly J. PENLAND
Political Counselor, Alternate Representative
(202) 647-6375 		August 9, 2024
Ms. Julianna AYNES-NEVILLE
Development Counselor, Alternate Representative
(202) 647-9908 		October 28, 2015  
Mr. Fernando D. ROJAS
Senior Advisor, Alternate Representative
(202) 647-9482 		August 2, 2004  
Ms. Rachel OWEN
Deputy Political Counselor, Alternate Representative
(202) 647-9378 		August 31, 2020  
Mr. Andrew STEVENSON
Alternate Representative
(202) 647-9057 		September 6, 2006  
Mr. William AYALA
International Economist and Alternate Representative
(202) 647-9912 		August 22, 2023  
Ms. Christina HEIFFERON
Alternate Representative 		May 11, 2023  
Ms. Haydee ROJAS
Foreign Affairs Officer, Alternate Representative 		April 15, 2024  
Ms. Lidice (Lilly) CALAFELL
Human Rights Specialist, Alternate Representative 		March 11, 2025  
Ms. Lucero V. GOMEZ
Foreign Affairs Officer, Alternate Representative 		May 10, 2024  
Ms. Hilary RENNER
Elections Officer, Alternate Representative 		February 21, 2025  
Ms. Jennifer SHOWELL
Deputy Director – Summit Coordination, Alternate Representative
(202) 647-3354 		February 18, 2014  
Ms. Barbara ADAIR
Summit Coordinator, Alternate Representative
(202) 736-7532 		February 19, 2020  
Ms. Katherine FENNELL
Attorney Adviser, Alternate Representative
(202) 647-7046 		July 23, 2021  
Mr. James WALL
Foreign Affairs Officer, Alternate Representative
(202) 634-1497 		November 3, 2023  
Ms. Christine HULSIZER
Attorney Advisor 		September 20, 2024  
Mr. Nicholas MONTELONGO
Foreign Affairs Officer, Alternate Representative 		November 1, 2024  
Mr. Daniel DILEO
Alternate Representative 		November 26, 2024  
Ms. Claudia CEBALLOS- RIVERA
Foreign Affairs Officer, Alternate Representative 		January 3, 2025  
Ms. Andrea PERALTA
Foreign Affairs Officer, Alternate Representative 		January 15, 2025  

Address: WHA/USOAS Bureau of Western Hemisphere Affairs Department of State - Room 5914  Washington, D.C. 20520

Phone: (202) 647-9376

Fax: (202) 647-6973

E-mail: usa@oas.org

Website: http://www.usoas.usmission.gov

Office Hours: 8:15 a.m. to 5:00 p.m. / Closed: Saturday and Sunday

President:
The Honorable Donald J. TRUMP

Vice-President:
The Honorable James D. VANCE

Secretary of State:
The Honorable Marco RUBIO

Secretary of the Treasury:
, CABINET LIST PENDING CONFIRMATION BY MISSION

Secretary of Defense:
The Honorable , ,

Attorney General :
The Honorable , ,

Secretary of Interior:
The Honorable , ,

Secretary of Agriculture:
The Honorable , , ,

Secretary of Commerce:
The Honorable , ,

Secretary of Labor:
The Honorable , ,

Secretary of Health and Human Services:
The Honorable , ,

Secretary of Housing and Urban Development:
The Honorable , ,

Secretary of Transportation:
The Honorable , ,

Secretary of Energy:
The Honorable , ,

Secretary of Education:
The Honorable Dr. , ,

Secretary of Veterans Affairs:
The Honorable , ,

Secretary Office of Homeland Security:
The Honorable , ,

Chief of Staff, The White House:
Mr. , ,

Administrator, Environmental Protection Agency:
Mr. , ,

Acting Director, Office of Management and Budget:
Mrs. , ,

U.S. Trade Representative:
Mr. , ,

Ambassador, Permanent Representative to the United Nations:
Her Excellency , ,

Chair, Council of Economic Advisors :
Mr. , ,

Administrator, Federal Emergency Management Agency :
Mrs. , ,

Director of National Drug Control Policy:
Mr. , ,

Administrator, Small Business Administration :
Mrs. . ,

Director, Central Intelligence Agency:
Mr. , ,

Ambassador, Permanent Representative to the Organization of American States:
The Honorable , ,

Flag United States of America

Capital: Washington, D.C.

National Holiday: July 4

Date of Entry into the Inter-American System : 1889

Website: http://www.usoas.usmission.gov

Any amendment to the Directory of Permanent Missions must be reported to protocol@oas.org.