I'm not sure, but it's a part of the US so wouldn't be treated like any other mail? I never really get trouble with customs when receiving mail before, but i'm not sure all the stuff about customs.. anyone familiar with it?
And all of you other guys, i am so touched by your granny-loving, granny-protecting big hearts, can everyone say AWwww lol
oh, or you mean the supplier? if the supplier/sender is US address then it should be fine? I thought you were talking about the recipient's address (receiving end)