International delegates travelling to the United States for a trade show typically apply for a B-1 temporary business visitor visa, which covers attending conventions, conferences and trade shows; Visa Waiver Program nationals may instead travel under ESTA. Confirm your individual status with the nearest U.S. embassy or consulate.
Processing: Varies by nationality; apply several weeks before travel.
Official U.S. Department of State business visa pages and the USCIS B-1 temporary business visitor page are the authoritative sources; USTravelDocs handles appointment scheduling and fee payment.
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