Okla. Stat. tit. 63, § 63-683.14: Exemption from civil liability

A. 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, or providing a mass immunization and

prophylaxis site or Strategic National Stockpile storage site during

an actual or impending emergency or exercise shall, together with

any 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 for loss of, or damage to, the

property of such person; provided, that the injury or death was

caused by or incidental to the actual use of such premises for such

real, actual or impending emergency or exercise, and further

provided that nothing herein contained shall grant immunity from

gross, willful or wanton acts of negligence.

B. Neither the State of Oklahoma nor any political subdivision

thereof nor any officer or employee of the State of Oklahoma or of

any political subdivision thereof nor volunteer whose services have

been accepted and utilized by an officer or employee of the State of

Oklahoma or of any political subdivision thereof for carrying out

the functions of this act shall be civilly liable for any loss or

injury resulting to any person's company, corporation or other legal

entity as a result of any decision, determination, order or action

of such employee in the performance of assigned duties and

responsibilities under this act during a stated emergency unless

such loss or injury was caused by the gross negligence, or willfully

and unnecessarily or by the wanton act of such state officer or

employee or volunteer. Nothing in this act shall be construed to

waive the sovereignty or immunity of the State of Oklahoma, or any

political subdivision thereof, from being sued.