Can I run a NASA Rally Sport event with an RA log book?
You can run a NASA Rally Sport event with an RA log book.
If you have an RA log book, you can choose to have your vehicle tech'd according to the RA rulebook. If your vehicle meets the RA rules, it is legal to compete at a NRS event, even if it doesn't quite fit into the NRS rules. The most common question in this area involves FIA certified seats, which are required by NRS. RA vehicles with RA log books that meet RA rules and don't have FIA seats are allowed to compete in NRS events.
Note that the "legal to compete" doesn't address class compliance. So the classing will be done according to the class rules used by that event.