VISA invitation letter information

Entry requirements for international travel to a congress like ICN depend heavily on nationality, so it’s worth checking well ahead of time rather than assuming a passport alone will be enough.

Citizens of the EU and a handful of neighboring countries typically only need a valid passport or national ID. Visitors from countries not exempt from visa requirements will usually need to apply at a Spanish consulate in their country of residence, and that process can take weeks, so early planning matters.

For visa applications, consulates often ask for supporting documentation — proof of accommodation, a return ticket, and sometimes a personal invitation letter from the event organizers confirming the purpose of travel. Congress organizers typically offer an invitation letter service for registered delegates who need one, generated once registration is confirmed and sent directly to the individual rather than to a consulate.

Given how long visa processing can take in some countries, it’s generally worth applying well in advance of a congress date — sometimes several months, depending on the destination country’s consulate.

For current visa and invitation letter details tied to a specific edition of ICN, check that edition’s own registration materials.