In most states, you must register before you can vote. Click here for a National Mail Voter Registration Form (need U.S. address). Not sure if you're already registered, or need to update your information? Select your state, county or city in the drop down menu.

Many states offer online services that can help you look up your local voting site. Others list contact information for local election officials, who are trained to help you find your polling place. Select your place of residence in the drop down menu.

Find out about ID requirements where you plan to vote. Select your state from the drop down menu below for details.

You may be eligible to vote prior to the election as an absentee or early voter. State laws vary greatly, so be sure to pay attention to the information provided by your election officials, or contact your local election office for help. For information about absentee and/or early voting where you live, select your state from the dropdown menu.

You may want to prepare for Election Day by finding out who's running for office before you go to the voting booth. Click here to visit the nonpartisan Project Vote Smart Web site and enter your zip code in the left-hand column to get more information about the candidates where you live.