Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.401.65 Communication—ports, docks and anchorages

(a) Every vessel entering or leaving a lake port shall report to the appropriate Seaway station at the following check points:

(b) Every vessel arriving at a port, dock or anchorage shall report to the appropriate Seaway station, giving an estimated time of departure if possible, and, at least four hours prior to departure, every vessel departing from a port, dock or anchorage shall report in the same way giving its destination and the expected time of arrival at the next check point.

(c) Every vessel prior to departing from a port, dock, or anchorage shall report to the appropriate Seaway station its destination and its expected time of arrival at the next check point.