The audit procedure was straightforward. They asked me for copies of my student rosters and my curriculum. After a few questions about the structure of my classes (where, time, procedures, housekeeping stuff), they then had me talking for 95% of the hour long interview. I think that they want to ensure that instructors know their curriculum and are hitting all the main points.
The big takeaway is that they asked me to tell other instructors with whom I come in contact three things:
1) Ensure you are using only NRA B-27 targets.
2) Tell your students not to post certificates on social media, as they can be counterfeited.
3) Ensure that each 8 hour class has 8 hours of actual instruction. Lunch does NOT count! This is a big one.
All in all, it was a pleasant experience. Nothing at all what I had worried about when the word "audit" was thrown out! If your curriculum covers everything, you know your stuff and your rosters are in order, nothing to worry about.