Correct me if I'm wrong here but the UPC always differs to first the manufacturer recommendations and then that catch all authority of jurisdiction mess. Should have that line memorized by now... anyway it the stamps make it available for that manufacturer to sell the product even if it may or may not be allowed in your jurisdiction. And as for the taping the glue and primer together, screw the inspector that thinks he can tell me I can't! I still do it to this day. That's like telling you can't wipe your rear with anything less then 3ply might get your hand dirty!?!? Why would you have two dobers out at the same time? Remove dober, prime, cap, remove dober, glue, cap. I only have two hands lol. I don't know why that just really struck a cord I guess lol.