Criteria for becoming a Majors/National class

I recently submitted a letter to the CRB about Formula First becoming a Majors class. Thank you for the response in the latest Fastrack. Honestly we weren't really expecting at this time to be considered as a Majors class. We realize car count probably wasn't there yet. We are working hard to build the class in several regions. I guess the real question is what should we make our target? What is the criteria we need to meet. It's hard to hit an undefined target.

Thanks