Passports -- For up-to-date passport requirements for countries around the world, check out the Consular Information Sheets for individual nations at the U.S. State Department Web site (start at http://travel.state.gov). International visitors can obtain a visa application at the same website. Note: Children must present a passport when entering the U.S. at airports.
Visas -- The U.S. State Department has a Visa Waiver Program (VWP) allowing citizens of the following countries (at press time) to enter the United States without a visa for stays of up to 90 days: Andorra, Australia, Austria, Belgium, Brunei, Denmark, Finland, France, Germany, Iceland, Ireland, Italy, Japan, Liechtenstein, Luxembourg, Monaco, the Netherlands, New Zealand, Norway, Portugal, San Marino, Singapore, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom. Canadian citizens may enter the U.S. without visas; however, they will need to show either a passport or a government-issued photo ID (such as a driver's license) and proof of citizenship (such as a birth certificate). Note: Any passport issued by a VWP country on or after October 26, 2006, must be an e-Passport for VWP travelers to be eligible to enter the U.S. without a visa. Citizens of these nations also need to present a round-trip air or cruise ticket upon arrival. E-Passports contain computer chips capable of storing biometric information, such as the required digital photograph of the holder. (You can identify an e-Passport by the symbol on the bottom center cover of your passport.) If your passport doesn't have this feature, you can still travel without a visa if it is a valid passport issued before October 26, 2005, and includes a machine-readable zone, or between October 26, 2005, and October 25, 2006, and includes a digital photograph. For more information, go to www.travel.state.gov/visa.
Citizens of all other countries must have (1) a valid passport that expires at least 6 months later than the scheduled end of their visit to the United States, and (2) a tourist visa, which may be obtained without charge from any U.S. consulate.
Many international visitors traveling on visas to the United States will be photographed and fingerprinted on arrival at Customs in airports and on cruise ships in a program created by the Department of Homeland Security called US-VISIT. Exempt from the extra scrutiny are visitors entering by land or those (mostly in Europe) that don't require a visa for short-term visits. For more information, go to the Homeland Security website at www.dhs.gov/usvisit.
U.S. Entry: Passport Required -- New regulations issued by the Department of Homeland Security now require virtually every air traveler entering the U.S. to show a passport. As of January 23, 2007, all persons, including U.S. citizens, traveling by air between the United States and Canada, Mexico, Central and South America, the Caribbean, and Bermuda are required to present a valid passport. As of January 31, 2008, travelers entering the U.S. by land and sea from the above regions are required to show either a passport or a government-issued photo ID (such as a driver's license) and proof of citizenship (such as a birth certificate).
Medical Requirements -- Unless you're arriving from an area known to be suffering from an epidemic (particularly cholera or yellow fever), inoculations or vaccinations are not required for entry into the United States. If you have a medical condition that requires syringe-administered medications, carry a valid signed prescription from your physician; syringes in carry-on baggage will be inspected. Insulin in any form should have the proper pharmaceutical documentation. If you have a disease that requires treatment with narcotics, you should also carry documented proof with you -- smuggling narcotics aboard a plane carries severe penalties in the U.S.
For HIV-positive visitors, requirements for entering the United States are somewhat vague and change frequently. For up-to-the-minute information, contact AIDSinfo (tel. 800/448-0440 or 301/519-6616 outside the U.S.; www.aidsinfo.nih.gov) or the Gay Men's Health Crisis (tel. 212/367-1000; www.gmhc.org).
What You Can Bring into Washington -- Every visitor more than 21 years of age may bring in, free of duty, the following: (1) 1 liter of wine or hard liquor; (2) 200 cigarettes, 100 cigars (but not from Cuba), or 3 pounds of smoking tobacco; and (3) $100 worth of gifts. These exemptions are offered to travelers who spend at least 72 hours in the United States and who have not claimed them within the preceding 6 months. It is altogether forbidden to bring into the country foodstuffs (particularly fruit, cooked meats, and canned goods) and plants (vegetables, seeds, tropical plants, and the like). Foreign tourists may carry in or out up to $10,000 in U.S. or foreign currency with no formalities; larger sums must be declared to U.S. Customs on entering or leaving, which includes filing form CM 4790. For details regarding U.S. Customs and Border Protection, consult your nearest U.S. embassy or consulate, or U.S. Customs (tel. 202/927-1770; www.customs.ustreas.gov).
What You Can Take Home from Washington -- Canadian Citizens: For a clear summary of Canadian rules, write for the booklet I Declare, issued by the Canada Border Services Agency (tel. 800/461-9999 in Canada, or 204/983-3500; www.cbsa-asfc.gc.ca).
U.K. Citizens: For information, contact HM Customs & Excise at tel. 0845/010-9000 (from outside the U.K., 020/8929-0152), or consult their website at www.hmce.gov.uk.
Australian Citizens: A helpful brochure available from Australian consulates or Customs offices is Know Before You Go. For more information, call the Australian Customs Service at tel. 1300/363-263, or log on to www.customs.gov.au.
New Zealand Citizens: Most questions are answered in a free pamphlet available at New Zealand consulates and Customs offices: New Zealand Customs Guide for Travellers, Notice no. 4. For more information, contact New Zealand Customs, The Customhouse, 17-21 Whitmore St., Box 2218, Wellington (tel. 04/473-6099 or 0800/428-786; www.customs.govt.nz).
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.