Hi! I have some information to add for Full Line Vending Regulations for TEXAS.
The web site for the Texas Comptroller is http://www.window.state.tx.us/
We called our local comptroller office and were given some information, but after further investigation, the information was incorrect since we are vending only snacks and sodas. The phone number for the Texas Comptroller Vending Machine specialists is 1-800-252-1385. They were able to give us more accurate information. Basically, we DO NOT need a General Business License for snack and sodas. We just need our Sales Tax Permit AP-201. This one phone call saved us $200.00 in unnecessary licenses.
If you are running amusement machines, you will need a General Business License and some additional permits and such. Here is a link with some info you will need. http://www.window.state.tx.us/taxinfo/taxpubs/tx96_256.html
I am sorry that I don't have information for bulk vending in Texas, but maybe this will provide a starting point for where to look.
-Mrs. Team S