It just came up, it's not on the form. They're kindda informal, not like TDE or PCA where you *have* to register by a certain date.
You can just print out the form, write down one-day for $150 for Saturday and they'll take care of it. Oh write down my name also of course!
You can even just show up with $150 cash in hand and register on the spot. I'd recommend getting your car tech'ed before the event tho, so u won't waste time there. I'm in Blue and it runs last so I usually don't have to be there til like 9.
--Andrew