Must I already be a registered voter to vote in Tennessee pursuant to this provision?

No. If you meet the qualifications to register to vote in Tennessee but have not registered prior to requesting an absentee ballot and you fall into one of the above categories, your application for absentee ballot will be treated as an application for temporary registration.

Normally, an individual who registers to vote by mail must appear in person in the first election the person votes in after such registration becomes effective. This provision is waived in the case of military personnel, their family members, or overseas citizens. However, since this is only a temporary registration, once you are no longer eligible to vote under this provision of the law, you must complete a voter registration form and submit the form to your local county election commission prior to voting in any subsequent election. 

If you are a registered voter prior to requesting an absentee ballot under this provision, the above information does not apply to you.