Alabama Code Title 31. Military Affairs and Civil Defense § 31-9-17

Any person owning or controlling real estate or other premises who voluntarily and without compensation grants a license or privilege, or otherwise permits the designation or use of the whole or any part or parts of such real estate or premises for the purpose of sheltering persons during an actual disaster or an actual, impending, mock, or practice attack, shall, together with his successors in interest, if any, not be civilly liable for negligently causing the death of, or injury to, any person on or about such real estate or premises, or for the loss of, or damage to, the property of such person.