Missouri Revised Statutes Title VI. County, Township and Political Subdivision Government § 68.010. Cities and counties authorized to form port authorities, when

1. Every city or county which is situated upon, or adjacent to, or which embraces within its boundaries a navigable waterway, is hereby authorized to form a local port authority, and upon approval of the highways and transportation commission of the state of Missouri, the port authority shall be a political subdivision of this state. In every constitutional charter city not within a county, a local “Port Authority” is created by sections 68.010, 68.015, 68.025, 68.040, 68.045, 68.060 and 68.070 and shall become a political subdivision of this state September 28, 1975.

2. The highways and transportation commission of the state of Missouri is hereby authorized to accept applications, conduct hearings, and approve or disapprove applications for approval of local or regional port authorities as political subdivisions of this state, as provided herein, but in determining the approval or disapproval of such applications, the highways and transportation commission shall consider the following criteria:

Provided, however, any such application shall be granted if it is made by a city or county of at least three hundred thousand population, having a common boundary with the state of Kansas, or by a group of cities or counties at least one of which meets the aforesaid criteria, and if no proposed boundary of the port authority described in such application overlaps the boundary of any then existing port authority.

3. No city shall create a port authority under sections 68.010, 68.015, 68.025, 68.040, 68.045, 68.060 and 68.070 if said city is located within a county that has created a port authority which has received approval as a political subdivision of this state under sections 68.010, 68.015, 68.025, 68.040, 68.045, 68.060 and 68.070.