I'm officer police of colombia, I 'm studying in fort benning and come back to my country the 20 of June I want To Know if tax about my shops refun me in the airport, what office I could to go, I could To give my tax in the airport,
Thank for your help.

You need to call the local airport to see if they have procedures for refunding local sales taxes for foreign visitors.

In the U.S. visitors can not get sales tax refund.