Kan. Stat. § 19-3608a
The board of county commissioners, as the governing body of any rural fire protection district organized, named and numbered under the provisions of article 36 of chapter 19 of the Kansas Statutes Annotated may enter into contracts on an annual or other basis with any rural fire protection district of an adjoining county or counties of another state having a general fire protection program or fire-fighting equipment under the control of the governing body thereof, for fire protection services or fire protection cooperation. All such contracts shall be upon terms suitable to all concerned, and said board of county commissioners is hereby authorized to do everything necessary to carry out such contracts: Provided, The terms and conditions upon and in compliance with which each district is to cooperate in furnishing, maintaining and operating fire equipment for outside aid or mutual aid or making payment for such service shall be expressly stipulated.
The county treasurer of the county in which such fire district is located is hereby authorized to pay over moneys to the treasurer or other proper officer of such district in an adjoining state authorized to receive same in accordance with the terms of such contract and upon the order of the said board of county commissioners. Any rural fire protection district, department, company or firemen answering any fire alarm or performing fire prevention services or rescue, resuscitation, first aid, inspection or any other official work outside its state and within a rural fire protection district organized under this act, shall be considered an agent of the rural fire protection district located in the state of Kansas, and acting solely and alone in a governmental capacity, and such rural fire protection district located in another state shall not be liable in damages for any act of commission, omission, or negligence while answering or returning from any fire, or reported fire, or doing or performing any fire prevention work or rescue, resuscitation, first aid, inspection or any other official work.
K.S.A. 19-3608a