Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.79302

(a) Adopt and amend all necessary rules, regulations, and ordinances for the management, government, and use of any waterways, harbors, channels, or other navigational facilities under its control, either within or outside of its territorial limits; employ harbor guards, police, or a harbormaster with full police powers; establish penalties for the violation of the rules, regulations, and ordinances; and enforce those penalties.

(b) Adopt and enact rules, regulations, and ordinances designed to safeguard the public upon or beyond the limits of harbors, channels, connecting waterways, or other navigational facilities within the political subdivision or its political jurisdiction, which rules shall be consistent with and conform to, as nearly as possible, the laws of this state.

(c) Vest authority for the maintenance, operation, and regulation thereof in an officer, board, or body of the political subdivision by ordinances or resolution which shall prescribe the duties and powers of the officers, boards, or body.

(d) Employ a regular harbormaster for the harbors, channels, connecting waterways, or navigational facilities under its control; or, in cases where a harbor board or body is established, the harbormaster may be employed by the board or body.