When a tent or fabric shelter is used, an operator shall ensure that: The occupancy of the tent or fabric shelter does not exceed the manufacturer's recommended capacity; and The tent or fabric shelter: Is made of fire retardant material; Bears a permanent label which states conspicuously, “WARNING: NO OPEN FLAMES IN OR NEAR THIS TENT OR FABRIC SHELTER”; and Is located at least 10 feet away from a campfire or open flame.