(A) Any county, incorporated municipality, special purpose district, or other political subdivision may provide for the joint administration of any function and exercise of powers as authorized by Section 13 of Article VIII of the South Carolina Constitution.

(B) The provisions of this section may not be construed in any manner to result in diminution or alteration of the political integrity of any of the participant subdivisions which agree to and become a part of the functional consolidation, nor may any constitutional office be abolished by it.