Travel Advisory: The USA has updated entrance requirements and electronic devices may be screened. Please be advised that powerless electronic devices will not be permitted onboard aircraft bound to the USA. Click here to read the TSA's press release and the statement issued by Homeland Security.
Your airline will give you documents to complete while en route to the USA. All travellers are required to complete Customs Declaration Form 6059B. Those travellers who are non–U.S. citizens and are requesting admission to the USA with a visa will also be handed Form I-94 (white), Arrival/Departure Record.
You must go through U.S. Customs and Border Protection (CBP), for immigration and customs processing. CBP must approve your entry upon your first airport landing in the USA.
At Passport Control, most foreign travellers need go through the US-VISIT process. A CBP officer takes your electronic fingerprints and a photograph as part of your travel record. US-VISIT uses biometrics—such as fingerprints—to establish and verify your identity and identification materials and to check you against a watch list of known or suspected terrorists, criminals and immigration violators. You may be asked questions such as what you do for a living, whether you have enough money for your visit (a credit card is a smart precaution), and when and how you will be leaving the country (bring a copy of your itinerary). It is advisable that single parents and guardians travelling with a minor should have proof of legal custody.
After Passport Control, gather any baggage and enter Customs.