Was at a local craft distillery and on the tour the iw=owner related that he had gotten a letter from ATf that essentially said that we know you bought a big still. Now, IF you are selling product the fines are X gazillion dollars. At this point, they hurries to become legal. aIt would appear that The Feds aren't concerned if you done't sell. Don't know about the state but I used to work with some guys who did a little private distilling.