Driving Privileges for Foreigners
If you're a noncitizen visiting Georgia and have a valid driver's license issued by your home country, you may legally drive in the state.
However, if you become a Georgia resident, you must apply for a state driver's license. The Department of Driver Services (DDS) fully outlines the steps.
Basically, you'll need to pass the written and road tests, and provide acceptable proof of your identification, Georgia residency, and legal status in regards to being in the United States. Depending on the situation, you may also need to provide your Social Security number.
If you're a noncitizen of the country, you'll have to provide proof of legal presence to be in the United States. Your license will only be valid for five years or until your immigration document expires, whichever comes first. However, if your document doesn't have an expiration date, your license will only be good for one year.
Be sure to have your immigration document with you whenever conducting driver license-related transactions, such as renewing or replacing your license.
http://www.dmv.org/ga-georgia/apply-license.php