Visto n' Visa
Blog
Notícias e artigos
Destinations
Careers
Immigrants

What are the best documents to evidence my participation in relevant international events?

To prove your participation in international events and apply for the B-1/B-2 visa, gather official, organized, and updated documentation that demonstrates the legitimate purpose of the trip.

Written by

Victoria Harper

Editor-in-Chief

Updated on April 30, 2025
1 min read
Share

It is important to highlight that, when planning participation in international events, having complete and organized documentation can help demonstrate your travel purpose when applying for the B-1/B-2 visa. This documentation reinforces that your trip has legitimate purposes, whether for business or leisure, and that you will return to your country after the event.

Among the best documents to evidence your participation are: conference/completion certificates, invitation letters or official proofs, detailed event schedule, registration receipts, and additional evidence such as presentation letters for speakers or exhibitors. Keeping all documents organized and updated is essential to avoid issues during the visa review process.

Furthermore, it is crucial to respect U.S. immigration laws and to be wary of services that promise unofficial facilitation. Always seek safe and specialized guidance, as each case is unique, and this content serves as a reference to improve your documentation. Good preparation and success on your journey!

Learn more about B-1/B-2 Visa

Duration
Up to 6 months
Extension
Possible (up to 6 months)
Work
Not permitted
Processing
2-8 weeks
All about B-1/B-2 Visa
Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

Victoria's tips

What are the best documents to evidence my participation in relevant international events?

To prove your participation in international events and apply for the B-1/B-2 visa, gather official, organized, and updated documentation that demonstrates the legitimate purpose of the trip.

Recommended reading about B-1 / B-2

More content about B-1 / B-2

Escassez de Pilotos nos EUA: Carreira e Caminhos de Visto Living Abroad
Victoria Harper Victoria Harper

US Pilot Shortage: Career Paths and Visa Options

The US commercial aviation market is recalibrating hiring in 2026, with average salaries of $198,000, projected retirements, and visa pathways…