rig requirements for NAXJA trips can be found near the bottom of the By-Laws page (tab on the home page) quoted below.
All vehicles must have the following equipment to attend the off road portion NAXJA sponsored Events
Legally required automobile insurance and registration;
Fire extinguisher;
First Aid Kit;
Tow Rope (no metal hooks allowed), Tow Chain, or Winch;
Safety belts;
Spare tire, jack, and lug wrench;
Hooks both front and rear (or suitable attaching point)
CB (HIGHLY recommended, but not mandatory)
I will also be posting guidelines for each trail when a trail list is posted in the next week or two. The guidelines are a minimum for each trail and are posted so you don't sign up for a trail that is beyond the capabilities of your Jeep. that usually ends in broken parts, body damage and an unhappy owner/driver. We want to avoid that.