All U.S. citizens are eligible to vote, even if they live overseas. The exact requirements for registering to vote and requesting an absentee ballot will depend on the state in which you are eligible to vote. Most States require you to register to vote to start the absentee voting process. We encourage you to use the Federal Post Card Application (FPCA). The FPCA is a form you can use to register to vote and request absentee ballots for the year. We suggest that you send in a new FPCA every year and any time you move.
The Federal Voting Assistance Program (FVAP) provides information and assistance for citizens living overseas. At the FVAP website you can find voter registration and absentee ballot information for every state. You can also file the FPCA from this site.
Many States allow you to submit your FPCA electronically and all States allow for at least one form of electronic transmission of your blank ballot. Mail delivery times will vary based on where you are and customs requirements. Mail your materials early enough to account for the mail delivery time. Using electronic options can help reduce the ballot transit time for your election materials.
If you have any questions, you can contact the Consular Section at ConsulateNiamey@state.gov, or by calling 20 72 26 62 and asking for the Consular Section.