International participants attending the event at Centro de Eventos Rebouças in São Paulo may require a visa to enter Brazil, depending on their nationality. Here’s a step-by-step guide to help you understand the process:

1. Check if You Need a Visa
   Brazil has visa exemption agreements with many countries, meaning citizens from certain countries can visit Brazil for short stays (typically up to 90 days) without a visa. To find out if your country is exempt from needing a visa, you can consult Brazil’s official Ministry of Foreign Affairs website or check with the nearest Brazilian consulate in your country.
   You can also check Brazil’s official visa policy through this link:
   Brazil Visa Policy
2. Types of Visa
   For congress participants, the appropriate visa is usually a Business Visa (VITEM II), which covers professionals attending conferences, seminars, and similar events in Brazil. Ensure that you select this category when applying.
3. Documents Required for Visa Application
   The following documents are typically required for a Business Visa (though requirements may vary slightly depending on your country):
   • Passport valid for at least 6 months beyond the date of entry.
   • Completed visa application form.
   • Proof of event participation (invitation letter or confirmation of registration for the congress).
   • Proof of financial means (bank statements, credit card limit).
   • Proof of accommodation (hotel reservation or other lodging details).
   • Travel itinerary (flight reservations).
   • Visa fee payment receipt.
4. Application Process
   • Submit your visa application to the nearest Brazilian consulate or embassy. You may need to schedule an appointment, submit your documents online, or visit the consulate in person, depending on the regulations in your country.
   • Processing times vary, so it is recommended to apply for your visa at least 4-6 weeks before your planned travel date.
5. For more information about the visa application process, visit:
   Brazilian Visa Application
6. Special Considerations for Congress Participants
   If you are attending as a speaker or official representative at the congress, make sure to provide the invitation letter from the event organizers, as it will be required to justify the purpose of your visit. If you’re part of an international delegation, you might need additional letters or documentation from your institution or employer.
7. Visa Exemptions
   Some congress participants may be eligible for visa exemptions depending on bilateral agreements between Brazil and their home country. For example, citizens of EU member states, United Kingdom, Japan and several other countries may not require a visa for short-term business or tourism stays. Citizens from Canada, the United States and Australia will be required to have visa after April 10, 2025. 
8. Visa on Arrival
   Brazil does not offer a visa-on-arrival service. Ensure that you have your visa secured before your trip.

For additional assistance, it is always recommended to contact the Brazilian consulate in your country, where they can provide the most accurate information and help with specific inquiries.