KRS 96A.210

Counties and cities of this state abutting upon the boundary line between this state and any other state are hereby authorized separately, jointly with each other, or jointly with any other county, municipality or political subdivision of any such abutting state to form a transit authority or to become a part of an existing transit authority as authorized by this chapter, with the broad and specific powers granted hereunder; or under KRS Chapter 65; provided, however, that any contract, agreement or compact authorized to be made under this section, shall be made with due regard to such federal or state constitutional requirements, as may prevail at the time of the making thereof.