
All the people who come to you Port of entry into the United States subject to inspection by customs and border protection officers (CBPfor its acronym in English). These are them Requirements and documents to which one must return Entry from Mexico or Canada.
This is what the US government explains required documents for enter the USA They depend on nationality, age, reasons for travel and whether you are entering by land, sea or air.
In addition, to strengthen the Border securitythe Western Hemisphere Travel Initiative (WHTI):
Most foreign citizens entering the United States receive one Form I-94 at the port of entry. The electronic document records the arrival and departure dates of visitors.
The Mexicans, adults or minorsmay include: Documents for enter the USA By land or sea from Mexico:
The BCC card works to visit the US border areas for a maximum of 30 days. However, if the card is presented together with a passport, it acts as visa and would allow it Entry into the USA by land, sea or air.
Requirements for citizens Mexicans entering the United States from Canada:
A valid passport is required to enter Canada with a border crossing card. You can also enter with a Mexican passport and a valid US visa.
For cross the Border with the USACanadians must provide one of the following documents:
Requirements for Canadian Children:
The Canadian children under 16 years of ageThose entering the United States by land or sea from one of the border countries can present one Canadian nationality card.
The American citizens You also need to submit documents Return to the United Statesout of Canada, Mexicothe Caribbean and Bermuda. This is the list of valid documentation from CBP:
Requirements for American Children:
The American children under 16 entering the United States from one of the Adjacent countries by land or seayou can provide one of these documents:
US Military Requirements:
Military members of the Bundeswehr who have traveled for official reasons can present their documents Military ID and the official orders they received.