Homologation and log book

I know it's not a formula car but I need some guidance from the great knowledge base here at Apexspeed :)



How do I go about having a tin top homologated and apply for a log book? I only see homologation forms for open wheel / sports racers on the SCCA website. The car is an Abarth 500 Challenege car that we're looking to run in STL.



Thank you in advance!