R.I. Gen. Laws § 46-4-6.6
The provisions of § 46-22-14, or any other provisions of the general laws notwithstanding, and in addition to any authority and powers conferred upon the city council of the city of Newport, authority shall also be granted to the city council of the city of Newport to authorize for the appointment of a harbor coordinator and by ordinance grant such authority as the city council may deem necessary to the harbor coordinator for the enforcement and supervision of any ordinances, rules, and regulations governing the public waters within its jurisdiction, and to regulate by ordinance the speed, management, and control of all vessels and the size, type, location, and use of all anchorages and moorings, within the public waters within the confines of the city including, without limiting the generality of the foregoing, the authority and power to prohibit waterskiing on any of the public waters, to designate upon a map of the public waters within the city the places where permanent or temporary moorings or anchorages may be maintained, to assign moorings, to remove moorings, to collect a fee for the use of moorings, to provide for minimum mooring specifications, to provide regulations for houseboats that are not self-propelled, to provide regulations for regattas, races, marine parades, tournaments, and exhibitions, to provide for the removal of wrecks or derelicts or abandoned boats or docks, and to impose penalties for violators of the ordinances, not to exceed in amount three hundred dollars ($300) or imprisonment not exceeding ten (10) days in some jail or house of correction, for any one offense, the fines to be recovered to the use of the city.
R.I. Gen. Laws § 46-4-6.6