Visa
The visa is the document granted by Consular Representations of Brazil abroad that allow the expectation of admission and stay of foreigners in the national territory, provided that the conditions established by law have been met.
Brazil adopts a policy of reciprocity regarding visas. This means that nationals of countries that require visas for Brazilian citizens will need a visa to travel to Brazil. According to the Brazilian law, Brazil must agree, on a reciprocal basis, to offer visa waiver to nationals of another country. Brazil has signed visa exemption agreements with about 90 countries. To see if you need a visa, please check the table at the link below:
The visit visa will be issued to foreigners travelling to Brazil for staying up to 90 days without purposes of immigration or the exercise of paid activity (daily allowances, artistic paychecks, compensation or other travel expenses are allowed). Visit visas can be granted for those travelling for tourism, business, transit, artistic or sports activities, study, volunteer work, or to attend conferences, seminars or meetings, among other purposes - provided there is no remuneration in Brazil and the stay does not exceed 90 days.
Itamaraty (the Ministry of Foreign Affairs) is the body of the Brazilian government responsible for granting visas, which occurs through the Embassies, General Consulates, Consulates and Vice consulates of Brazil abroad. To apply for a visa, foreigners must submit the visa application form duly completed, a valid travel document, proof of payment of consular fees, International Certificate of Immunization - when necessary --, time and other specific documents for the type of visa requested. Please, be aware that the visa must be requested ahead of your visit. Foreigners who want to apply for a visa to travel to Brazil should contact the Brazilian Representations abroad to obtain more information about the subject. The list of Embassies, General Consulates, Consulates and Vice consulates of Brazil abroad can be consulted at the following link:
Take note that the Brazilian visa will never be granted in Brazilian territory. Therefore, it is not possible to obtain your visa in airports, ports of entry or any other point of the Brazilian border. Itamaraty and the Federal Police (agency responsible for immigration control in Brazilian borders) cannot and will not authorize the entry of foreign nationals who do not have the proper visa.
More information can be found at:
https://www.gov.br/mre/pt-br/assuntos/portal-consular/quem-contatar/vistos
The sites have an English and Spanish version. Feel free to consult the websites and, also, the conference secretariat if needed.