Competition licenses are required for 9.99 at NHRA and 9.49 (i believe) at IHRA sanctioned tracks. Basically 6 passes have to be made proving you can handle the car at these speeds and faster.
They also require a full physical to be had within 30 days of getting the license.
As for the roll cage comment, my feeling is that if you have your car going that fast you need the cage. It's only there for your saftey.
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