No more than 110 gallons, or two 55 gallon drums, may be stored in a camp at one time. This does not include fuel in generators that comply with safety radius requirements. You must comply with all requirements regarding transportation of and secondary containment for stored fuel and be prepared to remediate any fuel spills that occur. Read all about fuel storage, fuel safety, and Leave No Trace here: http://www.burningman.com/installations/fuel_storage.html.