Nev. Rev. Stat. Ann. 414.120
Liability: Use of Land
An individual, who owns land and who, voluntarily and without compensation, allows others to use the land for shelter during training drills or during an actual or imminent emergency, will not be held legally responsible for injury, death, or damage to property that results from use of the land. They can be held legally responsible if acting with extreme carelessness or intent to cause harm.
Limitation on liability of private persons
Any person owning or controlling real property 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 property or premises to shelter persons during an actual, impending, mock or practice attack, or during an emergency or disaster as described in NRS 414.020, and his or her successors in interest, if any, are not civilly liable for negligently causing the death of, or injury to, any person on or about such real property or premises, or for loss of, or damage to, the property of such a person.