What do I need to cross the border into Mexico by car?

U.S. citizens must present a valid U.S. passport book or card, in addition to an entry permit (Forma Migratoria Multiple or FMM) issued by Instituto Nacional de Migración (INM). Travelers should be sure to enter Mexico with valid proof of automobile registration, even if remaining in the border zone.



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U.S. citizens must present a valid U.S. passport book or card, in addition to an entry permit (Forma Migratoria Multiple or FMM) issued by Instituto Nacional de Migración (INM). Travelers should be sure to enter Mexico with valid proof of automobile registration, even if remaining in the border zone.

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What am I allowed to take into Mexico? When crossing by land, you are allowed to take your personal belongings and $300 worth of merchandise, duty free. People over the age of 18 may bring three liters of liquor or beer and up to six liters of wine.

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At the point of entry into Mexico, you must report to the customs authorities and present the medical prescription issued by the competent authority. Said document must bear the name of the doctor who authorizes the prescription, his/her signature, contact details (telephone, address) and professional registration.

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You must declare all items you purchased and are carrying with you upon return to the United States, including gifts for other people as well as items you bought for yourself. This includes duty-free items purchased in foreign countries, as well as any merchandise you intend to sell or use in your business.

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Prepare for Likely Questions From U.S. CBP Officials
  • Why are you visiting the United States? ...
  • Where will you be staying? ...
  • Who will you be visiting? ...
  • How long will you be staying in the U.S.? If you're coming in with an immigrant visa (have been approved for U.S. permanent residence), you won't likely be asked this.


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Yes, some vaccines are recommended or required for Mexico. The CDC and WHO recommend the following vaccinations for Mexico: hepatitis A, hepatitis B, typhoid, cholera, rabies, meningitis, polio, measles, mumps and rubella (MMR), Tdap (tetanus, diphtheria and pertussis), chickenpox, shingles, pneumonia and influenza.

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Most visitors from the United Kingdom, regardless of vaccination status, can enter Mexico.

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Latest update:There's a high rate of violent crime in Mexico, especially after dark. Kidnapping and extortion are serious risks (see 'Safety'). We advise: Exercise a high degree of caution in Mexico overall due to high levels of violent crime.

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