Was looking on the OMA site and have a couple questions.

First the numbers, do I have ot run OMA number plates. I have never ran a plate before and it just read in teh rules like I had to, and if I do where do I get my number. Will there be a 1 race buffer so that I can register when I get there and have my numbers before the next race or do I need to have them the first race?

Second, you have to join the UORR? Do you not have to have an AMA membership or do you have to have both to run the OMA series, just curious, thanks.