The answers provided are accurate – the rules do vary by state. However, the good news is that most states will accept your "home-state" resale number (I assume you are registered to collect GA sales tax). But, many wholesalers are reluctant to accept anything other than the state of the ship to – to protect themselves.

I've actually written a book on this and am in the process of updating it — Feel free to contact me at dyetter@ycstax.com if you would like further assistance dealing with these issues.