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A visa is a document issued by a country giving a certain individual permission to formally request entrance to the country during a given period of time and for certain purposes. Visas are typically stamped or attached into the recipient’s passport or are sometimes issued as separate pieces of paper.

Generally speaking, US citizens do not need visas for countries in South and Central America, or Western and Central Europe. Complete visa requirements can be viewed at

If a visa is required, it is you responsibility to obtain a tourist visa for your outreach.

NOTE: if the immigration officer at the airport asks you the purpose of your visit, say “tourism” unless directed otherwise by your field contact.