They are required......But the ISDRA Glamis "Campfire Permit" Requirement never made any sense.
This actually applies and is ALL that is needed IMHO:
FIRES. The burning of potentially hazardous materials, e.g. (but not limited to) gas, oil, plastic and magnesium is prohibited.
WOOD PALLETS. It is prohibited to use as firewood, or have in possession, any firewood materials containing nails, screws, or other metal hardware, including, but not limited to, wood pallets and/or construction debris.