The E-1 visa is a U.S. nonimmigrant visa known as the "Treaty Trader Visa," available to nationals of countries that maintain an E-1 treaty relationship with the United States. It is designed for individuals or companies engaged in substantial international trade between the United States and the treaty country. The trade may involve goods, services, banking, technology, consulting, transportation, tourism, or other qualifying commercial activities. To qualify, more than 50% of the international trade must generally be between the United States and the treaty country. The visa may be used by business owners, executives, managers, and certain essential employees. One major advantage of the E-1 visa is that there is no fixed minimum investment amount like the EB-5 program, and the visa may be renewed indefinitely as long as the qualifying trade continues. Spouses may apply for work authorization, and children under the age of 21 may accompany the principal applicant. However, the E-1 is not a direct path to a green card and remains a temporary nonimmigrant classification.