Useful Information

Passports

A valid, current passport is a requirement to travel between USA & Mexico.  (In the event your passport is misplaced or lost during your trip, its good to travel with a photocopy, or scan your passport and save it to a secure online account.)

Resources for US citizens:

Apply for a passport
www.travel.state.gov/passport/passport_1738.html

How to get your passport in a hurry:
travel.state.gov/passport/hurry/hurry_831.html

Passport Renewals
travel.state.gov/passport/renew/renew_833.html