What is the maximum duration for tourism or business travel using ESTA?

The maximum duration for tourism or business travel using the Electronic System for Travel Authorization (ESTA) is indeed 90 days. This parameter is set by the U.S. Department of Homeland Security and applies to travelers from countries participating in the Visa Waiver Program. The 90-day limit applies to a single visit and means that travelers can stay in the United States for up to three months without needing a visa, provided they meet all other ESTA requirements.

The significance of this duration is not only practical, allowing for a variety of travel purposes like tourism or business meetings, but also reflects the U.S. government's efforts to streamline travel for eligible visitors while maintaining security measures. Understanding this timeframe is crucial for international travelers to plan their trips effectively and ensure compliance with U.S. immigration regulations.