Yes! If you’re planning on having fire in your camp, whether it’s open fire or flame effects, you must comply with the rules found here: http://burningman.org/event/art-performance/fire-art-guidelines/fire-in-theme-camps/. These are for your safety, the safety of your campmates, and all of Black Rock City.
If you’d like to have fire on your mutant vehicle, you may use an LP-Gas flame effect. However, using liquid-fueled effects or open fire that cannot be instantly extinguished is NOT allowed on Mutant Vehicles. Please see these guidelines about fire and flame effects on mutant vehicles: http://burningman.org/event/art-performance/fire-art-guidelines/fire-on-mutant-vehicles/