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The Curious Bag
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Requirements for entering the United States vary depending on the method of travel and the traveler's point of origin, according to the Department of Homeland Security. While a visa may be needed, it is not necessary in all cases.
U.S. Citizens
U.S. citizens must present a valid passport when entering the country. A passport or passport card must be presented when entering by land or sea.
Lawful Permanent Residents
Lawful permanent residents must present a passport when entering the country by air. A permanent resident card, or Form I551, may be presented when traveling by land or sea.
From Other Countries by Air
Citizens from other countries must present a passport or visa when entering the country, according to the Department of Homeland Security.
Mexican Citizens
Mexicans can enter the United States by land or sea with a passport and a non-immigrant visa. A laser visa border-crossing card may be substituted for this visa.
Land and Sea, Other Countries
Land and sea entry requirements vary depending on the citizen's country of origin, according to the Department of Homeland Security. Check with the local authorities to see what documents you will need.
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