www.scca.org
this will get you started. browse around and request the info-packet. i think it's better to print off the form and mail it in yoself though... cuz they are madd slow like my car. i think there is a section where you can indicate you want the "speed freakz"... which is a SCCA membership for under 25yrs of age(the benefit being... cheaper membership)
when you get it, just fill it out/sign, etc. and send it in with your payment.. i think it was 30bucks. there is a part where you have to fill out which region you will be participating.... just put BRR(blue ridge region).
then, you get your "license" and a subcription to SCCA's "SportsCar" which is a monthly mag.
let me know if you need help
g'luck