Read it all carefully it semms to have more to do with registering the manufacture or importation so that federal tax may be collected.
The tax is already being collected from manufacturers and importers. The amendment of 2000 appears to change the definition of handgun from destructive device to a new more specific definition.
This applies to a tax that has been on the books and registration that has been taking place for a long time (1968?). It does not seem to require private citizens to pay a tax and register their ownership.
Thats my read.
Oh well Auntie is calling
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Master Blaster