Okla. Stat. tit. 63 § 695.10
Plans for the orderly evacuation and interjurisdiction reception of portions of the civilian population as the result of any emergency or disaster of sufficient proportions to so warrant, shall be worked out and maintained between the party jurisdictions of the Oklahoma Intrastate Mutual Aid Compact and the emergency management or services directors of the various jurisdictions where any type of incident requiring evacuations might occur. Such plans shall be put into effect by request of the jurisdiction from which evacuees come and shall include the manner of transporting such evacuees, the number of evacuees to be received in different areas, the manner in which food, clothing, housing, and medical care will be provided, the registration of evacuees, the providing of facilities for the notification of relatives or friends, and the forwarding of such evacuees to other areas or the bringing in of additional materials, supplies, and all other relevant factors.
Okla. Stat. tit. 63, § 695.10