I just learned that the Taser corporation requires sellers to perform a background check on customers for certain models of Tasers. The online form to do so can be seen here. Note that critical personal information must be given to the Taser seller.
Do you need to do anything special to sell Tasers? you ask.
Surely, you jest.
So...Taser requires a potential purchaser of specific models to give their name, address, driver's license number, and social security number to the yahoo who became a Taser dealer.
Further...there is a separate registration for those with a concealed weapons permit, requiring the potential customer to turn over their CWP number.
(NOTE: The Texas CHL is a concealed handgun license, and the state of Texas does not recognize it as a license to carry anything but a handgun).
For one other model of Taser, the customer is allowed to perform a background check on himself, for whatever that's worth.
Kind of puts a kink in the "I will control my own destiny" ads that Taser has been running in some gun mags. It might be difficult to control one's own destiny when you have to give such sensitive information to some guy who happens to sell Tasers. Of course, Taser sellers are not required to keep records nor are they constantly threatened with action from the ATF if they forget to cross a T. You might as well give your SSN to the cashier at Walmart.