What you'll need to pay is entry ($50-65), SCCA membership, and San Diego Region Membership. You can get temporary versions of the memberships for $20 or sign up for the year-long versions.
You can check it periodically or sign up for automatic e-mail notification here: http://www.sdr-scca.com/mail/?p=subscribe
You should check out our facebook (take a look at the notes section for an FAQ), as it may answer more of your questions: www.facebook.com/sandiegoautocross
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