Kan. Stat. § 19-3621
The governing body of the fire district may enter into contracts with cities and other fire districts, townships, or duly organized and incorporated volunteer fire departments whether within or without the county or state, for cooperation between fire departments of the respective cities, districts and townships, and may include in such contracts provisions by which the fire department of such cities, townships or other districts or volunteer fire departments will furnish fire protection to the fire district in question in consideration of cash payments or reciprocal services. The governing body of the fire district may also include in such contracts provisions to provide, furnish and pay for a bond in such amount as shall be agreed upon to indemnify any such city, fire district, or township against any loss which it may sustain as result of damage to property or injury to persons arising out of the furnishing of fire protection services to such districts.
The supervision and control of the fire district fire department shall always be with the governing body of the fire district. The fire chief or person in charge of the fire department shall have the right in every case, where a contract exists for reciprocal service, to determine whether or not the district can spare all or any portion of its fire equipment and firefighters at that particular time.
K.S.A. 19-3621