The boards of county commissioners of the counties of this state may participate in cooperation with the organized townships and municipal corporations within their respective counties, organized townships and municipal corporations in adjacent counties, or the fire-fighting agencies thereof, and with organized townships, boards of county commissioners or municipal corporations in adjacent states when reciprocal agreements between contracting parties have been provided and with the secretary of public safety or his designee in the organization and training of rural fire-fighting groups, and in the payment of the operation and maintenance of fire-fighting equipment and in the cost of suppressing fires.
SDCL 34-31-2