U.S. birth certificate, Consular Report of Birth Abroad or naturalization certificate, only for travel by cruise ship returning to the same place of departure in the United States Nationals of Mexico may use a Border Crossing Card, which serves as a visa when presented with a passport. Without a passport, the card on its own also allows entry by land or sea while remaining within 25 miles from the Mexico–United States border (up to 75 miles in Arizona and 55 miles in New Mexico) for a stay of up to 30 days. Children born to a U.S. permanent resident mother during a temporary visit abroad do not need a passport or visa at the mother's first re-entry to the United States within two years after birth. Similarly, children born abroad to a parent with a U.S. immigrant visa after its issuance do not need a passport or visa if listed in the parent's passport with a birth certificate. Visas While there are about 185 different types of U.S. visas, there are two main categories: Nonimmigrant visa, for temporary stays such as for tourism, business, family visits, study, work or transit; Immigrant visa: for permanent residence in the United States. At the port of entry, upon endorsement with an I-551 admission stamp, the visa serves as evidence of permanent residence for one year, and the visa holder is processed for a green card. A child with an IR-3 or IH-3 visa automatically becomes a U.S. citizen upon admission and is processed for a certificate of citizenship (N-560). A U.S. visa does not authorize entry into the United States or a stay in a particular status, but only serves as a preliminary permission to travel to the United States and to seek admission at a port of entry. The final admission to the United States is made at the port of entry by a U.S. Customs and Border Protection (CBP) office. A U.S. immigrant visa can take 2 weeks up to 4 months to obtain. For those entering in a nonimmigrant visa status, the admission details are recorded by the CBP officer on a Form I-94 (or Form I-94W for nationals of the Visa Waiver Program countries for short visits), which serves as the official document authorizing the stay in the United States in a particular status and for a particular period of time. In order to immigrate, one should either have