Passports are now required for all international travel. If you are in need of a passport, visit your local Post Office for the appropriate paperwork. You can have your passport expedited if needed for an extra fee.

Also, for a lesser fee, you can get a passport card (shown below) that allows you to travel by land to Mexico or Canada. Visit this government website for more information http://travel.state.gov/passport/ppt_card/ppt_card_3926.html