You wouldn't need to look much further than the evolution of the BRC DMV

My friends who went in the late 90s recounted shooting at propane tanks from moving vehicles and having to camp inside of a ring of parked cars to protect your camp (from vehicular traffic)

After 2000 you had to show some decent design (not just a golf cart with dingleberries) and that was about it, they passed our moon car and shark van without much question, and the shark van was a giant sharp thing without lights.

Others will have to fill in the regs now, I understand things have gotten progressively more rigorous.

My understanding is that anything built on the playa, including the art (eg. temple of gravity) has an engineer's stamp just like would in Reno. Or just a bit more dusty.