U.S. visa requirements are determined by the U.S. State Department. Visa requirements will vary by country. Contact the U.S. embassy/consulate nearest to you to learn the procedure and to obtain a short-term, non-immigrant visa for the purpose of attending this program. Issuance of the U.S. visa is at the sole discretion of the U.S. visa office and the officer/representative. Please take note of the required documents for issuance of a U.S. visa on the website that corresponds to your home country.
Argentina
Buenos Aires http://buenosaires.usembassy.gov/general_information7.html
Brazil
Sao Paulo: http://www.embaixada-americana.org.br/index.php?action=materia&id=1979&submenu=7&itemmenu=58
Canada
Montreal http://montreal.usconsulate.gov/content/content.asp?section=visas&document=index
Toronto http://toronto.usconsulate.gov/content/content.asp?section=visas&document=index
Chile
Colombia
Ecuador
Quayaquil: http://guayaquil.usconsulate.gov/wwwhengnivtour.html
Mexico
Mexico: http://mexico.usembassy.gov/mexico/evisas_tourist.html
Panama
Panama City: http://panama.usembassy.gov/panama/tourist_visa.html
Peru
Venezuela
Caracas: http://caracas.usembassy.gov/wwwh262.html#application