Generally, foreign nationals who want to travel to the United States will need a visa. Whether it's a nonimmigrant visa for temporary stay, or an immigrant visa for permanent migration, however. The person who has the nationality of that country may be able to travel to the United States without a visa under the visa waiver program. All individuals who travel to the United States under the visa waiver program must obtain authorization through the electronic system (ESTA) prior to traveling to the country of United States.
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