I ordered a couple of stripped lowers from Spikes Tactical in Florida. Very Nice. When they got to my FFL I went to pick them up. My understanding was that there is only one sheet that is "required by law". Then my FFL gives me this white sheet that has to be filled out. What gives? Says that they have to have it to do the BCI call. Seems like this is a new page that I have not noticed with my other purchases in years past. Any idea what it is? Have others used/seen it? Is it legal to "require" this be filled out? Who is keeping this record?