Naturalized U.S. citizens must carry their proof of citizenship. Both cities collect bridge tolls at the entrance. If you plan to go more than 26 miles past the border, you will need to acquire tourist permits for yourself and your car. They are available in Nuevo Laredo. You will need a birth certificate with State Seal and a picture I.D. or Passport.
Credit cards are the only form of payment accepted for car permit fees.
Please note that credit cards and vehicle registration papers must have the name of the person applying for the car permit. Both cities collect a small bridge toll as you enter each respective city. From there, simply take the path directing you toward International Bridge One where you pay a small toll. You will be required to pay a small bridge toll when traveling in either direction. Parking in Nuevo Laredo is conveniently located at several lots in the downtown area.