There's a guard at the front of the center 24/7. Just go to him, sign in on the visitor's sheet and you are good to go. You can slip back to the visitor center area for some safety glasses and pick up ear protection near the time clocks at each plant entrance. We watched our's being built and were in the plant at 6AM daily. A great experience.
2013 Tiffin Allegro Bus 43QGP
2011 Chevy Silverado 1500 Toad