Contact
Washington, D.C.
ICSID
1818 H Street, N.W.
MSN C3-300
Washington, D.C. 20433
U.S.A. 

Phone No. (202) 458-1534
Fax No. (202) 522-2615
E-mail: ICSIDsecretariat@worldbank.org 

Visitors/ Local Deliveries Address:
 
1225 Connecticut Ave, N.W. (known within the World Bank Group as the C Building)
3rd Floor
Washington, D.C. 20036
U.S.A.  
Pre-arranged deliveries may be made between 9:00 a.m. and 6:00 p.m., Monday through Friday. Upon arrival, please call an ICSID staff member or ICSID’s general number ((202) 458-1534) in order for ICSID staff to accept delivery.
 
Paris
World Bank Conference Center
66, Avenue d'Iéna
75116 Paris
France
Phone No. +33 1 40 69 30 00