When I run track events, there are tech sheets that are sent. There should be one on the event site -
http://saac47.com/files/tech-1.pdf . PM me, and I can send others that I have used, and the one I use for the Shelby track day I run at Pocono. Mostly standard stuff, Helmets and belts are the two critical items.
Edit - I have attached the Tech Sheet I use at the Pocono event. It is more detailed than SAAC's, just added it as a comparison and reference. I will be updating the seatbelts section for the 2022 event on June 2, 2022.
Helmets - NO MA, use SA. 2015 or newer. Not sure on full face or open faced at IMS.
Basically, if you have a 5 or 6 point harness and no air bags, HANS is the rule. Factory airbags, use factory belts. If you put in harnesses, but have factory belts and air bags in the car, the preference is to use the factory systems. Classic cars use the factory belts.
Refer to NASA, SCCA, or other racing organizations for proper belts and harness mounting rules.
If you are running a race car, refer to your group's rules for safety equipment.
SAAC's tech follows most of the current standards. I have worked tech at most conventions for the last 25 years, plus SCCA, and other events. Ask questions, we can all try to answer and help.
Remember, bottom line is that it is your life you are protecting. Be safe, equip properly. Nothing sucks more than to be rejected at tech for skimping.
Avon - what kind of car are you bringing? If it is the 500 in your avitar, leave the safety equipment factory stock. If you want to use a HANS, get a hybrid to use with factory 3-point belts.
Dan