Passport Requirements

 when visiting border cities of Mexico - see below:
 

Effective 31 Jan 2008, to cross from Mexico to the US by land (tour bus), US or Canada citizens 19 and older, a Valid Passport or Picture ID & birth certificate is required.    Under 19, a Valid Passport or birth certificate is required.

Some other ID's are acceptable.  See http://www.dhs.gov/xtrvlsec/crossingborders/ for further information.

(A complete list of acceptable documents for re-entry of US or Canadian citizens can be seen at http://www.cbp.gov/xp/cgov/travel/vacation/ready_set_go/land_travel/chnge_in_proced.xml

Birth certificates for US citizens may be obtained at http://www.cdc.gov/nchs/howto/w2w/w2welcom.htm

Visitors to the US - Passports are required - if I-94 card is received on entrance to the US, this I-94 card is required for re-entry to the US.)  See http://www.dhs.gov/xtrvlsec/crossingborders/#2 for further information.
 

United States Citizens visiting Mexico's Border Cities

Effective 31 Jan 2008, to cross from Mexico to the US by land (tour bus), US or Canada citizens 19 and older, a Valid Passport or Picture ID & birth certificate is required.  Under 19, a Valid Passport or birth certificate is required.

Some other ID's are acceptable.  See http://www.dhs.gov/xtrvlsec/crossingborders/ for further information, or call 1 800 315 6668.

US Resident Aliens

- A valid US resident alien card is required to re-enter the US.
 

Canadian Citizens Visiting Mexico Border Cities
and re-entering the US

- Citizens of Canada all generally seem to carry Canadian Passports while in the USA.

Effective 31 Jan 2008, to cross from Mexico to the US by land (tour bus), US or Canada citizens 19 and older, a Valid Passport or Picture ID & birth certificate is required.  Under 19, a Valid Passport or birth certificate is required.

Mexican Citizens entering the US

- In general, a citizen of Mexico must have a passport or a non-immigrant visa or Form DSP-150 (also known as a “Laser Visa”).  Form DSP-150 is a biometric, machine readable, B1-B2 visa/Border Crossing Card.

Citizens of other countries visiting the US who re-enter the US
through Mexico Border Cities

Visitors to the US - Passports are required - if an I-94 card is received on entrance to the US, this I-94 card is also required for re-entry to the US.)  See http://www.dhs.gov/xtrvlsec/crossingborders/#2 for further information.