Code of Federal Regulations Title 46. Shipping § 46.401.300 Authorization for establishment of pools

(1) District No. 1. All United States waters of the St. Lawrence River between the international boundary at St. Regis and a line at the head of the river running (at approximately 127° True) between Carruthers Point Light and South Side Light extended to the New York shore.

(2) District No. 2. All United States waters of Lake Erie westward of a line running (at approximately 026° True) from Sandusky Pierhead Light at Cedar Point to Southeast Shoal Light;  all waters contained within the arc of a circle of one mile radius eastward of Sandusky Pierhead Light;  the Detroit River;  Lake St. Clair;  the St. Clair River, and Northern approaches thereto south of latitude 43°05′30″ N.

(3) District No. 3. All U.S. waters of the St. Marys River, Sault Sainte Marie Locks and approaches thereto between latitude 45°59′ N. at the southern approach and longitude 84°33′ W. at the northern approach.