Hi, I'm not an offical or spokesman for the track. Just starting in mini racing myself. Below is all I know....
This August 16, Sandy Hook Speedway in northern Maryland will be having roadraces for pocket, mini, and mid-size bikes. This includes mini-shifters.
Sandy Hook Speedway - Home
$5 gate fee, $65 to race, $3 ambulance fee, $40 annual fee to join the club (you don't have to join).
I talked to the club manager John P., he said you need to have your oil fill plug safetywired. As far as protective clothing, they allow jeans, but the owner of the track frowns on it. He prefers you are as protected as possible with leathers. Of course you need gloves, helmet, elbow, knee, etc. protection.
Evidently, this is going to be a monthly event. Check their calendar.
I'll be riding a white NSF100, driving a white Sprinter van. Hope to see you there.
Bob