Costa Rica: P.O. Box 1628-1000 San José, Costa Rica. | Phones:(506) 234-3360 / 234-3225 | Fax (506) 280-2137 | Email: info@osacampaign.org
United States: Amigos de Costa Rica 1776 I Street, NW, Suite 900 Washington, D.C. 20006 | Phone:(202) 756-4871 | Fax: (202) 756-1301