Depending on the carrier, package type, and destination, you'll print one of two customs forms. For many carrier services, your customs form is combined with the shipping label you attach to your package. Some deliveries require a multi-page form that should be attached using a clear envelope.
All persons need a Form I-94 except U.S. citizens, returning resident aliens, aliens with immigrant visas, and most Canadian citizens visiting or in transit. Air and sea travelers will be issued I-94s during the admission process at the port of entry.
Passport, Travel Visa and National ID CardProper identification is the foundation of international travel. As a result, you should ensure to always have an official identification document with you. You can even consider having multiple documents such as your passport, national ID card or driver's licence.
If you are traveling by air, flight attendants should hand you a U.S. Customs Declaration Form (CF-6059). If you are arriving by land or sea, the immigration officer will provide you with the CF-6059 at the port of entry. Proceed to the Custom and Borders Inspection site near the terminal area.